Other things equal, an increase in a consumer's money income: a) causes the consumer to choose a different combination of goods along a given budget line.
b) shifts the individual's budget line rightward because she can now purchase more of both products.
c) increases the amount of utility a consumer receives from a given quantity of a good.
d) eliminates the individual's economizing problem.

B. shifts the individual's budget line rightward because she can now purchase more of both products

Explanation:

When there is an increase in the budget line of a consumer, it means that there is an expansion in this consumers consumption possibilities.

The consumers budget line will then shift rightward or upwards. With this increase the consumer can purchase more of both goods. The outward shift indicates increase.

Therefore the answer to the question is option B.

answer; sales of books;