He is the subject since 'He' is checking (doing the verb)
to find the subject ask yourself who or what is doing the verb
ex: my dog ran to the street.
verb is ran
who ran?
my dog
my dog is the subject
b. possibly bc its a 55% chance i know this bc it said "database is a set of organized information (electronic) manipulated by a software"
The correct answer among the choices is option A. The statement "Masks played an important role in Haida history." best summarizes the passage. The sentence in option A was rephrased from the thesis statement of the paragraph. The other choices gave specific practices of Haida people.
