Ok, so this question is probably really easy but i can't really be bothered to answer it, terrible i know, but i all useful answers

Without a bulb energy cant go through and it would be an open circuit blocking the energy from coming out.

Ithink d is the right answer. hope this !

Answer: buoyancy forceexplanation: in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.