Which quotation is punctuated correctly?

“I won the school science fair last spring.” announced Ben.
“I won the school science fair last spring,” announced Ben.
“I won the school science fair last spring” announced Ben.
“I won the school science fair last spring, announced Ben.”

The second one

Explanation:

If you look after the right after the quotation, there is a comma and if there is more to the sentence, then a comma compliments it. The sentence at the end ends with a period and that is correct. If anything if after the quotation, there should always be a comma right before the quotations marks

“I won the school science fair last spring,” announced Ben.

Explanation:

the cost of attendance or coa is an approximate budget for the cost of attendance of the whole academic year. in order to calculate this, universities take into consideration many factors like room and board, tuitions and fees, books, transportation and personal expenses such as medicine, laundry, clothing. all these factors combined make up the final sum to the cost of attendance in each university.