Select the most appropriate option that can substitute the highlighted segment in the given sentence.
You must employ additional hands in complete the project in time.

Correct option is D

The correct substitution of the highlighted words is (d) to complete the project on time.
Explanation:
The correct structure after "employ" (verb of action) is an infinitive ("to + V1"). Also, the correct expression is "on time", not "in time", in this context.
Grammatical Rule:
· Verb + to + base verb (Infinitive)
· "On time" = punctually; "In time" = before a deadline (not suitable here)
· Example:
· You must hire more workers to finish the job on time.
· Other options:
· · (a) "in completing" – incorrect; should be infinitive after "employ"
· · (b) "project of time" – meaningless phrase
· · (c) “No substitution required” – incorrect due to grammatical error