Change the following from active to passive:
They have been neglecting maintenance of the archives for years.

Correct option is D

The correct passive voice of the given sentence is (d).
Explanation of conversion:
· Tense/Aspect in Active: Present Perfect Continuous — have been neglecting.
· Passive formation: be (in the same perfect-progressive sequence) + being + past participle.
· Subject/Object switch: They (agent) → by them; maintenance of the archives (object) → subject.
· Thus: “Maintenance of the archives has been being neglected by them for years.”
· Structure:
· Active: Subject + have/has been + V-ing + object + (time)
· Passive: Object + have/has been being + V-3 + by + agent + (time)
· Why other options are incorrect:
· (a) had been neglected = past perfect (wrong tense and no progressive sense).
· (b) is being neglected = present continuous; for years demands a perfect sense.
· (c) was being neglected = past continuous; wrong tense.
· Note: Though stylistically heavy, “has been being + V-3” is the grammatically correct passive of the present perfect continuous when required.