Identify the italicized word or phrase.
she was busily planning a party.
o participle
o infinitive
overb phrase

Participle is the correct answer.

Explanation:

A participle is a word formed by a verb and used as noun or  as an adjective; they are also used to make compound verb forms. In this case, the participle is formed with the verb + ing as in planning.

An infinitive is the basic form of a verb. It can be identified because it uses "to" before the verb.

A verb phrase contains a main verb or a main verb plus a modal auxiliary or any other auxiliary.

the narrator is saying that the old lady made her feel uncomfortable. you know this because they say "i found that rather irksome", "perhaps it was her being so upright and trim", and "i don't think it was that, because i thought that quaintly pleasant." hope this !

a is the indefinite article