The second one contains a capitalization error.
Answer:
Multiple areas for improvement have been identified by Roberts team.
Answer:
'Had Bought'
Explanation:
The infinitive 'to buy' turns into 'had bought' in past perfect. The PAST TENSE is simply 'bought', but the PAST PERFECT tense is 'had bought'.
The correct answer would be B. Adjective.
A participial phrase would appear to be a verb but it functions as an adjective in a sentence. It describes a noun. It consists of a present participle, past participle, or any modifiers and objects.
