Question

help on homwork Which sentence is correctly punctuated?

"Give me that book now," he said. Punching the air with his fist.

"Give me that book now," he said punching the air with his fist.

"Give me that book now," he said, punching the air with his fist.

"Give me that book now" he said, punching the air with his fist.

Answer 1

i belive its the third one
hope this helps :)

Answer 2

1st is the thrid one and the second quesrtion ia the thrid as well