TASK DEFINITION: "Yes, and" is a rule-of-thumb in improvisational comedy that suggests that a participant in a dialogue should accept what another participant has stated ("Yes") and then expand on that line of thought or context ("and..."). Given a prompt and two responses, identify which response is the type of "yes, and". Indicate your answer by 'Response 1' if the first response is correct, otherwise 'Response 2'.  Note that a "Yes, and" does not require someone explicitly saying 'yes, and...' as part of a dialogue exchange.
PROBLEM: Prompt: Hey, he knows it's Bill Clinton's pen and he's holding onto it. 
 Response 1: This is like two and a half pounds light. 
 Response 2: I admit no such thing. This is just a nice pen that I've had for quite some time.

SOLUTION: Response 2

PROBLEM: Prompt: OK, we should run the machine. We'll have to x-ray his entire head. 
 Response 1: I remember that day. I was your boss. I promoted you. 
 Response 2: The whole thing. A lot of people cut corners and they'll just x-ray the forehead.

SOLUTION: Response 2

PROBLEM: Prompt: Okay, so I bet if we just pop this door open - I mean, it couldn't be that there are thirty hungry zombies waiting on the other side of the door. 
 Response 1: Sometimes a sick pig lives inside of us. If we fix ourselves, the pig will fix itself. 
 Response 2: I doubt it. We've been in here for ten minutes, I'm sure they left.

SOLUTION:
Response 2