Add punctuation to the sentence that includes items in a series. My prince needs to be handsome smart and supportive of my goals in life.

 My prince needs to be handsome, smart, and supportive of my goals in life.

Explanation: Oxford comma rule: place a comma after each item in the series and before the conjunction.

for many centuries, the catholic church has been a patron of the arts. the church has used various scientific methods to maintain its power.

not 100% sure though!