Weight implies gravitational force causing acceleration

Steps:

• Gravitational field exerts force F = mg on mass m, where g is field strength.
• This force equals the object's weight W = mg.
• Presence of weight means the field is applying this force.
• By Newton's second law F = ma, the force causes acceleration a = g.

Why B is correct:

• Weight W is the gravitational force from the field; F = ma shows this force causes acceleration a = W/m = g.

Why the others are wrong:

• A: Field causes weight via mass, but statement ignores that weight (force) directly leads to acceleration, not just static weight.
• C: Mass is intrinsic property, not caused by field or weight.
• D: Mass leads to force from field, but acceleration requires unbalanced force; supported objects don't accelerate.

Final answer: B