In the long run; all production factors are ______? by Sunday | Oct 18 | Economics JAMB | 0 comments A. variable B. fixed C. semi-variable D. semi-fixed Correct Answer: Option A – variable Users Also Read These:If a firm doubles all inputs in the long run and the…The notion of short-run and long-run periods is…If all factors are variable in the long run firms;…The average curve and the marginal curve are…In long run, all factors inputs are?