Total productive efficiency is achieved when both technical efficiency and allocative efficiency are achieved. For a given mix of inputs that produce a given output, which of the following is consistent with improving technical efficiency (using the given input-output mix as the benchmark)?

• a. More output is produced using more inputs.
• b. More output is produced with the same inputs.
• c. More inputs are used to produce the same output.
• d. The least costly technically efficient input combination is chosen.