Carotenoids, a family of natural pigments, form an important art of

Great passage.. If this is a Gmat Prep then it took me 8-9 mins. to get the correct answer for the entire thing. Read line 6 to 30 twice.to get clarity.

Explanations

Information in the passage suggests that which of the following is true of carotenoids that a male animal uses for detoxification processes?
A. They were not acquired directly from plants and algae.
B. They cannot be replenished through foraging.
C. They cannot be used simultaneously to brighten coloration.
D. They do not affect the animal’s susceptibility to parasites.
E. They increase the chances that the animal will be selected as a mate.

The question asks what about the carotenoids that are used for detox process- (Go to end of the passage)
It may be that males
can use scarce carotenoids either for immune defense and detoxification or for attracting females. Males that are more susceptible to disease and parasites will have to use their carotenoids to boost their immune systems, whereas males that are genetically resistant will use fewer carotenoids for fighting disease and will advertise this by using the pigments for flashy display instead.

"or"- used for detox then not used for brighten the color.- Therefore c. I checked the other options and eliminated them too

The passage suggests that relatively bright carotenoid-based coloration is a signal of
which of the following characteristics in males of certain animal species?
A. Readiness for mating behavior- color wrt mating is not said(Female choose bright but males have no say)
B. Ability to fight- No, Fight what(no mention
C. Particular feeding preferences- No feeding
D. Recovery from parasite infestation- No No
E. Fitness as a mate


Last line 5 line:Relatively bright:
The fit males signal this by being more bright - E

According to the “conventional view” referred to in lines 14-15 of the passage, brighter
carotenoid-based coloration in certain species suggests that an individual
A. lives in a habitat rich in carotenoid-bearing plants and insects
B. has efficient detoxification processes
C. has a superior immune system
D. possesses superior foraging capacity
E. is currently capable of reproducing
Line 16:
Healthier can forage for more pigment than inferior D

Thanks

All opinions are welcome.. I want to get thru the barrier and will want to know how you think