Verb form (ending in -ing) used as an adj : participle
a verb form used as another part of speech : verbal
verb form (ending in - ing) used as a noun : gerund
group of words (no subject and verb) : phrase
verb form preceded by " to " used as noun, adj, or adv : infinitive
phrase beginning with preposition : prepositional phrase
prep. phrase modifying a noun : adjective phrase
participle with complements and modifiers : participle phrase
verb (ending in - ing) with a helping verb : verb phrase ??
prep. phrase modifying a verb, adj, or adverb : adverb phrase
a conjunction that joins words or groups of words : coordinating conjunction
adj. clause essential to meaning of sentence : restrictive clause
verbal (ending in -ing) used as noun : gerund phrase
The answer is B.
Brutus believes Caesar's death was necessary for the good of Rome. However, the actions of the other men following Caesar's death (actions that are not noble and good, but rather greedy and selfish) lead Brutus to fear that perhaps Caesar's death was not for the good of Rome after all.
B. Both pairs of opposite sides are parallel.