Refer to the Information Provided in Table 24

Refer to the information provided in Table 24.3 below to answer the question(s) that follow.
Table 24.3
-Refer to Table 24.3. At an output level of $2,400 billion, there is an unplanned inventory change of

A) positive $100 billion.
B) positive $200 billion.
C) negative $200 billion.
D) zero.