Bunuel
A committee
composed of the chief officers of every major airline has announced that the airline industry will soon adopt measures that are designed with added security and safety in mind and that ensures continued long-term employment for thousands of workers.
(A) composed of the chief officers of every major airline has announced that the airline industry will soon adopt measures that are designed with added security and safety in mind and that ensures continued long-term employment for
(B) composed of the chief officers of every major airline have announced that the airline industry will soon adopt measures that are designed with added security and safety in mind and that ensure the continued long-term employment of
(C) composed of the chief officers of every major airline has announced that the airline industry will soon adopt measures designed with added security and safety in mind and that ensures the continued long-term employment of
(D) consisting of the chief officers of every major airline have announced that the airline industry will soon adopt measures designed with added security and safety in mind and ensuring continued long-term employment for
(E) consisting of the chief officers of every major airline has announced that the airline industry will soon adopt measures that are designed with added security and safety in mind and that ensure continued long-term employment for
VERITAS PREP OFFICIAL SOLUTION:
This problem provides you with plenty of decisions that you could make, such as "composed of" vs. "consisting of" at the beginning of each answer choice and "long-term employment for" vs. "the long-term employment of" at the end of each choice. One of your primary roles on GMAT Sentence Correction problems, however, is to prioritize the decisions that you are best at making (which are those that are tested the most frequently). Often some of these wording differences are thrown in as "false decision points" to distract you from the real issue.
Here if you look toward the middle of each choice you should see that there is a choice between "has announced" (in A, C, and E) and "have announced" (in B and D). This is a singular-vs.-plural verb decision, and you should be well prepared for subject-verb agreement as one of your core competencies. Since the subject of this verb is "a committee," you need the singular "has" and can eliminate choices (B) and (D).
If you look a little further to the right you should see the difference between "that ensures" in (A) and (C) and "that ensure" in choice (E). The word "that" is important, as it serves as a good signal back to the subject of the verb "ensures." If you look back to the previous "that" it comes adjacent to "measures" ("measures that are designed...and that ensure"). This signals that the verb "ensure(s)" is parallel to "are designed" and that both are actions that the measures perform. With the plural subject "measures" you need the plural verb "ensure" ("the measures ensure"), so
choice (E) is the correct answer.