13.

Type Answer HERE:
Balloon 1, only
Plastic Sheet 1, only
Balloon 1 and Plastic Sheet 2
Balloon 2 and Plastic Sheet 1

Balloon 1 and Plastic Sheet 1

A , B , C OR D

I apologize for the confusion. The correct answer options are:

A) Balloon 1, only
B) Plastic Sheet 1, only
C) Balloon 1 and Plastic Sheet 2
D) Balloon 2 and Plastic Sheet 1

Please select the appropriate option from the given choices.

whats the answer?

I apologize for the confusion. The answer would depend on the context or specific question you are referring to. Without more information, I cannot provide the correct answer. Please provide more details or specify the question for me to assist you further.