Correct Answer  Option 2 : W/6
CONCEPT:

Weight of the body (W): It is defined as the force acting on a body due to gravity.
The weight of a body is calculated by the formula:
W = mg
where W is the weight of the body, m is the mass of the body, and g is the gravitational acceleration.
EXPLANATION:
From the definition, the weight of the body at a place is given by W = mg
it is given that g at earth = 6 × g at the moon
g = 6 g_{m}
m g = 6 m g_{m}
W = 6 W_{m}
here W is the weight at the earth and W_{m }is the weight at the moon.
Wm = W / 6
 So weight at the moon will be W/6.
 Hence the correct answer is option 2.