Read the sentence:
to the best of our knowledge, he decided that his major would be acting.
which does the sentence contain?
a) a conjunction
b) a gerund
c) an infinitive
d) a participle

The correct answer is: Option (B) A gerund

Explanation:

In simple words, a gerund is a form that is derived from a verb but that functions as a noun.

Gerund = (base-form-of-verb) + ing

In the given sentence, there is only one gerund, i.e. acting.

Acting = Act + ing (works as a noun)

Therefore, acting is a gerund, and the sentence contains a gerund.

Hence, the correct answer is option (B) a gerund.

The sentence “To the best of our knowledge, he decided that his major would be acting.”, contains a participle. What major? acting. The acting is the present participle that modifies the subject he. 

the correct answer is b. so you can tailor your resumé to the position.

it is important before sending your resumé for you could add some extra information relating to former jobs that might you get a higher possibility to be hired.

may be the company is looking for an experienced person, and showing you have worked in the area they are looking a person for may give you more positive points!