Correct option is C
No substitution required – the sentence is grammatically and contextually correct.
Explanation:
· The action "we were informed" is in
past passive voice, suitable with the past setting "At the end of...".
Grammatical rule used:
· Passive voice of past simple tense:
was/were + past participle (V3)
Example: We
were informed about the delay.
Other options:
· (a)
We are informed – present tense mismatch
· (b)
We get inform – incorrect verb form
· (d)
We were inform – incorrect; should be "informed"