Bottle-nosed dolphins have a highly developed sense of taste

Question

Bottle-nosed dolphins have a highly developed sense of taste, enabling them to detect various chemicals in the water; however,  since this animal has  no olfactory lobe, they apparently have no sense of smell.

a) since this animal has 
b) these animals have 
c) those animals have 
d) since these animals have 
e) since the dolphin has

abhimahna · Answer

Choice is between D and E. I went with D but not sure why E has been given as an OA.

Experts please help !!

abhimahna · Answer

We have to bring the reason for no sense of smell, hence using since should be the right answer.

B is not correct. Meaning change and llism error.

vikas9945 · Answer

In later part of sentence it is clearly written.." they have no.. so it should be these animals to correspond to "they"

Sent from my Le X507 using  GMAT Club Forum mobile app

abrakadabra21 · Answer

Bottle-nosed dolphins have a highly developed sense of taste, enabling them to detect various chemicals in the water, however, since this animal has no olfactory lobe, they apparently have no sense of smell.

a) since this animal  has   :S-V agreement issue
b) these animals have. :-  "without since : this animal has no olfactory lobe, they apparently have no sense of smell. it's a run-on sentence, also to reason this - they apparently have no sense of smell, You need "since"

c) those animals have. Same as B
d) since these animals have. 
e) since the dolphin  has   Subject verb agreement issue.

Shiv2016 · Answer

Bottle-nosed dolphins have a highly developed sense of taste, enabling them to detect various chemicals in the water, however, since this animal has no olfactory lobe, they apparently have no sense of smell.

1)"Bottle-nosed dolphins" is a plural subject and has a plural verb "have".
2) The verb-ing modifier modifies the entire previous clause i.e. it is an action modifier in this case. Because bottle-nosed dolphins have a highly developed sense of taste, they can detect various chemicals in the water.
3) "However" is a contrast word and "since" is a reasoning word. So in this sentence both are used together that means we have a contrast as well as a reason coming up. 
4) Also the pronoun "this" is not correct as the noun it refers to is plural and not singular.

a) since this animal has 
b) these animals have. 
c) those animals have. 
 d) since these animals have.   
e) since the dolphin has

CrackverbalGMAT · Answer

Bottle-nosed dolphins have a highly developed sense of taste, enabling them to detect various chemicals in the water, however, since this animal has no olfactory lobe, they apparently have no sense of smell.

A) since this animal has 
B) these animals have 
C) those animals have 
D) since these animals have 
E since the dolphin has

The subject-  “Bottle-nosed dolphins”  and the plural pronoun  “they”  in the non-undelined part give us enough clue that the underlined part should contain a plural subject.  Eliminate A and E.

As we are talking about the reason why they have no sense of smell, we need to use  “since” .  Eliminate options B and C.

Bottle-nosed dolphins have a highly developed sense of taste, enabling them to detect various chemicals in the water, however, since these animals have 
 no olfactory lobe, they apparently have no sense of smell. 
 Option D is correct.

VerbalBot · Answer

Automated notice from GMAT Club VerbalBot: 

A member just gave Kudos to this thread, showing it’s still useful. I’ve bumped it to the top so more people can benefit. Feel free to add your own questions or solutions.

 This post was generated automatically.

Bottle-nosed dolphins have a highly developed sense of taste

Prep Toolkit

Top 5 GMAT Debrief Videos

615 to 715 in 15 Days (Ria's Strategies)

More than Quant/Verbal Abilities: Speed vs. Accuracy

745 with Only Self-Prep and GMAT Club

From 555 to 765: 210-point Improvement

Perfect 805 Score Debrief by Julia

My Rewards

GMAT Sentence Correction (SC - EA only) Questions

Bottle-nosed dolphins have a highly developed sense of taste

Prep Toolkit

615 to 715 in 15 Days (Ria's Strategies)

More than Quant/Verbal Abilities: Speed vs. Accuracy

745 with Only Self-Prep and GMAT Club

From 555 to 765: 210-point Improvement

Perfect 805 Score Debrief by Julia

My Rewards