Learning curves

142 The following statements have been made about learning curves.
(1) Learning curves are easier to apply in companies with a high labour turnover than those with a lower
rate of staff turnover.
(2) Learning rates are not affected by time gaps between the production of additional units of a product.
Which of the above statements is/are true?
A 1 only
B 2 only
C Neither 1 nor 2
D Both 1 and 2

Is the answer B or C?

The answer to this question was not given so I had to copy this.