Competing duopolists both have MC=1 (and no fixed costs) and face inverse demand p=2 - 2Q, where Q=q1+q2 is total output. What is Firm 2's best response function, q2*(q1)?

a)

q2*(q1) = (1-2q1)/3.

b)

q2*(q1) = (1-q1)/3.

c)

q2*(q1) = (1-q1)/4.

d)

q2*(q1) = (1-2q1)/4.

e)

q2*(q1) = (1-2q1)/2.