In which sentence is the agreement between the pronoun and antecedent correct?

to become an architect, cassie knows that you must complete many years of education and training.

one of the girls in my class wants to get their college degree in architecture from that university.

each of the architecture colleges requires its students to complete a five-year program for a bachelor’s degree.

Each of the architecture colleges requires its students to complete a five-year program for a bachelor’s degree.

Explanation:

Each is always singular, so the agreement is correct in this sentence:

each - its.

based on the biblical principle philippians 4: 13 "i can do everything through christ who strengthens me." i agree that it is through him that we are given the strength to cope with every situation.

and based on the biblical principle proverbs 16: 32 "better to get angry slowly than to be a hero. better to be even-tempered than to capture a city."   i agree with the author of the passage to the extent that the nobility of heart demonstrates the strength of a person. those who are contemptuous, get angry easily and show their anger toward others are really weak, but those who are noble and make sure to not hurt other people and their feelings are strong people.