Select the correct option that has the correct usage of commas:

A public speaker should be cool collected and precise.

Correct and rewrite the following rambling sentence:

I was happy to walk down the aisle as a bridesmaid in my sister’s wedding, but I was very embarrassed when I stumbled in the middle of the ceremony, for when I recovered. 

Correct the given rambling sentence:

Every time I go to the grocery store I run into the same girl her name is Fran and she is a friend of my cousin.

Correct and rewrite the following rumbling sentence:

He picked up his bag, for it was time to go, and then he grabbed his coat and walked out the door.