Let a Firm's Production Function Be $Q = 100 ( a L + b K )$

Multiple Choice

Let a firm's production function be $Q = 100 ( a L + b K )$ The production function then becomes $Q = 500 ( a L + b K )$ Which of the following statements is true?

A) Neutral technological progress has occurred.
B) Labor-saving technological progress has occurred
C) Capital-saving technological progress has occurred.
D) Economies of scale have increased.