The antecedent of the underlined personal pronoun is B. FEW.
Few is an indefinite pronoun that serves as an antecedent. It is also in plural form. Therefore, the referent, THEIR, is also in plural form.
Pronoun is a word used to take the place of a noun. It must agree to the number of the antecedent.
If the antecedent is singular, then the pronoun should be singular.
If the antecedent is plural, then the pronoun should be plural.
The theme of revenge starts off very early in the play when Hamlet speaks with the ghost of his dead father and when the ghost tells Hamlet how Claudius murdered him which Hamlet was extremely angry and overtaken with feelings of responsibility to right the wrong that he been done to murder Claudius
I think you should read it yourself
play would be the correct verb