Answer:
- Verbal: A. to catch
- Kind: B. infinitive
Explanation:
Verbals are words formed from verbs but that do not act as a verb in the sentence, but as nouns, adjectives or adverbs, depending on the type of verbal.
There are three types: participles, which end in <em>-ing,-ed, -d, -t, -en </em>or<em> -n,</em> gerunds, which ends in <em>-ing</em>, and infinitives, which are formed with the word "<em>o</em> + the simple present form of a verb, for example: to + catch.
In the sentence "He waits at the bus stop to catch the bus", then, "to catch" is an infinitive. Infinitives may function as adjectives, adverbs or nouns and in the sentence provided, it is functioning as an adverb, modifying the verb "waits".