Suppose NBA basketball player Nicola Jokic is averaging 23 points per game going into the last game of the season in which he collects 28 points, thereby changing his average for the season. To use an analogy in economics, it could be said that average product increases:

a. When marginal product increases.
b. When total product increases.
c. When average product exceeds marginal product.
d. When marginal product exceeds average product.
e. Whenever marginal product is positive.