Select the option that expresses the given sentence in active voice.
"The function hall has been decorated attractively by the boys."

Explanation of the Correct Answer:
· The given sentence is in passive voice, where:
· "The function hall" (object) + "has been decorated" (verb) + "by the boys" (agent).
· To convert it into active voice, we make the "boys" the subject:
· "The boys + have decorated + the function hall attractively."
· Since "has been decorated" is in the present perfect passive, it changes to "have decorated" in the active voice.
Other options:
· (a) The boys attractively decorated the function hall. → Incorrect because it is in simple past tense, while the original sentence is in present perfect tense.
· (b) The boys will decorate the function hall attractively. → Incorrect because it is in future tense, which is different from the original.
· (d) The boys had decorated the function hall attractively. → Incorrect because it is in past perfect tense, whereas the original is in present perfect tense.
Thus, the correct answer is (c) The boys have decorated the function hall attractively.