A. Uses the vocab word incorrectly. ‘Exploit’ means to take advantage of which does not make sense in the context of the sentence (the correct word for that sentence is probably ‘explosion’).
B. Is correct because ‘esteem’ means to hold respect for.
Ann is the subject of the sentence
has taught is the verb phrase
students is the direct object
junior high are adjectives that modify the direct object students
for several years is a prepositional phrase that modifies the verb taught
