Can someone help me the ones that say blank please

Your new boss just entered your office, he says "bonjour monsieur, comment allez-vous? ". how would you answer his question? by saying “ça va. et toi? ” by shake his hand and saying ”salut. et vous? ” by saying “bonjour. et toi? ” and shaking his hand. by shaking his hand and saying ”bonjour. bien et vous? ”

Can someone put this in french passé composé? i read a book.yesterday was cold.

Selon vous les œuvres artistiques sont-elles de bon moyens pour témoigner et pour surmonter les périodes les plus difficiles de l'histoire ? oui-> pourquoi non-> pourquoi conclusion-> merci