A 10kg object is raised to a height of 20m. What is the magnitude of its potential energy? (Assume g = 10 m/s^2)

A 10kg object is raised to a height of 20m. What is the magnitude of its potential energy? (Assume g = 10 m/s^2)
 
(a) 500 J
 
(b) 1000 J
 
(c) 1500 J
 
(d) 2000 J
 
I had been asked this question during an online interview.
 
My query is from Potential Energy in portion Work, Energy and Power of Physics – Class 11
Select the correct answer from above options 
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