Question

following the successful deployment of a deep - sea probe, marine scientists mapped an unexplored section of the atlantic ridge. the images showing hydrothermal vents releasing mineral - rich plumes and supporting rare biological communities ____ as evidence of thriving ecosystems far from sunlight. in turn, the discovery prompted new research into how such organisms convert chemical energy into life - sustaining metabolic processes.
1 □ mark for review
which choice completes the text so that it conforms to the conventions of standard english?
a hailed
b hailing
c was hailed
d were hailed

Explanation:

To determine the correct verb form, we analyze the subject - verb agreement and the passive voice context. The subject of the verb is "The images...", and the action of "hailing" (to recognize or acclaim) is done to the images. So, we need a passive - voice verb form. The subject "The images" is plural, so we need a plural - form passive verb. Option D "were hailed" is in the passive voice and agrees with the plural subject "The images". Option A is active voice and singular, which doesn't match the subject. Option B is a present - participle form and not appropriate here. Option C is passive but singular, which doesn't match the plural subject.

Answer:

D. were hailed