4. Add commas, parentheses, or dashes where needed below. Students snickered when they heard that Mr. McWilliams's nickname though it's unofficialis Big Mac.

Students snickered when they heard that Mr. macwilliams’s nickname, though it’s unofficial, is Big Mac.

Hope this helps :)

b would be your answer due to the specifics of   it.

explanation:

b)and

is the answer.

its because you eat a lot of food and that can lead to many heath problems like diabetes or becoming very over weight and fat etc.