Originally from India, when the small Asian mongoose was brought to the islands of Maui, Moloka'i, and O'ahu in an attempt to manage the rats in sugarcane fields in the late nineteenth century it proved especially disastrous for the islands' native species, likely because of being an opportunistic predator, preying on a variety of small mammals, reptiles, birds, insects, fruits, and plants.
Meaning and structure :-
Originally from India (Adjectivial Modifier answering question which), when
the small Asian mongoose was brought to the islands of Maui, Moloka'i, and O'ahu in an attempt to manage the rats in sugarcane fields in the late nineteenth century it proved especially disastrous (adverbial modifier)
for the islands' native species(prep phrase),
likely because of being an opportunistic predator, (Being is used as an ing modifier modifying it proved disastrous)
preying (Verbing Modifier modifying 'it proved disastrous' clause)
on a variety of small mammals, reptiles, birds, insects, fruits, and plants.Blue - Subject
Green - Verb
Orange - ING modifier
Grey - Prepositional phrases
Summary -
when X happened (mangoose was brought)Y happened (it proved disastrous), being predator, preying on
A) when the small Asian mongoose was brought to the islands of Maui, Moloka'i, and O'ahu in an attempt to manage the rats in sugarcane fields in the late nineteenth century it proved especially disastrous for the islands' native species, likely because of being -> Correct; it has only one antecedent i.e. Mangoose
B) the small Asian mongoose having been brought to the islands of Maui, Moloka'i, and O'ahu in an attempt to manage the rats in sugarcane fields in the late nineteenth century and proved especially disastrous for the islands' native species, likely because of being ->
having been brought and having been proved are not verbs but modifiers and hence the first clause in this again does not have an acting verb - EliminateC) the small Asian mongoose was brought to the islands of Maui, Moloka'i, and O'ahu in an attempt to manage the rats in sugarcane fields in the late nineteenth century and has proved especially disastrous for the islands' native species, likely because it ->
"likely because it" subordinate needs a clause but doesn't have a verb - EliminateD) the small Asian mongoose, brought to the islands of Maui, Moloka'i, and O'ahu in an attempt to manage the rats in the sugarcane fields in the late nineteenth century and especially disastrous for the islands' native species, likely because it is ->
first part doesn't have a verb now; brought is acting as a past participle modifying the noun hence a fragment. - EliminateE) the small Asian mongoose, brought to the islands of Maui, Moloka'i, and O'ahu in an attempt to manage the rats in the sugarcane fields in the late nineteenth century and having proven especially disastrous for the islands' native species, likely because it is ->
Same as in D - EliminateCan some experts (
GMATNinja, @egmat) please review my understanding; I am still in the learning phase and needs feedback so that I can improve. Thanks in advance