The answer would be number four. I'm sorry if I am too late. Byes.....
Hello!
The balloon explodes, because the pressure builds up inside and the air want to expand. Letter a)
Hugs!
Answer:1.04 N
Explanation:
Given
Gravitational Force on the Platter is 
Tray makes an angle of 
This gravitational Force has components along and Perpendicular to Platter
Perpendicular Force 

Along the Tray


Thus 1.04 N is the magnitude of force that will cause Platter to slide down