Question: Some bat caves, like honeybee hives, have residents that take on different duties such as defending the entrance, acting as sentinels and to sound a warning at the approach of danger, and scouting outside the cave for new food and roosting sites.
(A) acting as sentinels and to sound
(B) acting as sentinels and sounding
(C) to act as sentinels and sound
(D) to act as sentinels and to sound
(E) to act as a sentinel sounding
Correct Answer: (B)
Explanation: Like honeybee hives, some bat caves have inhabitants who perform a variety of tasks, including guarding the entrance, serving as sentinels and sounding an alarm when danger is nearby, and scouting the area around the cave for fresh food and roosting locations.
The concepts used here to correct the sentence are,
- Subject-Verb Agreement
- Meaning
- Parallelism
The appropriate answer will accurately convey the intended meaning without any grammatical or other errors when it is used in the question's underlined section. Let's examine each choice in turn to discover the perfect answer.
Option – B : Correct
The parallel structure of all the lists is maintained in this sentence, making it correct. Because of this, this option is the right answer.
Option – A : Incorrect
By altering the list, this sentence changes its meaning. Because of this given reason, this option is incorrect and therefore is ruled out.
Option – C : Incorrect
This creates variations in the meaning. The sentence now implies that they are defending to serve as sound sentinels. Because of this given reason, this option is incorrect and therefore is ruled out.
Option – D : Incorrect
This creates variations in the meaning. The sentence now implies that they are defending to serve as sound sentinels. The same reason as the previous one. Because of this given reason, this option is incorrect and therefore is ruled out.
Option – E : Incorrect
The meaning is altered once more, and "sentinel" should be plural since "residents" is already plural. Because of this given reason, this option is incorrect and therefore is ruled out.
From the explanations given above, it is clear that the second option is the right answer.
“Some bat caves, like honeybee hives, have residents that take on” - is a GMAT sentence correction question. These types of questions contain grammatical errors in the underlined sentence and we have to choose the correct statement from the options. GMAT sentence correction is a part of GMAT verbal.
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