Consider an iso-quant curve , which has (100 K , 200 L) and output Q1= 1000 unit of X if both capital & labor are doubted ((200 K , 400 L) and the production function exhibits constant returns to scale, then
a. q2 = 2000
b. q2 is greater than 2000
c. q2 is less than 2000 but greater than 1000
d. q2 = 1000
