This question is based on the following table.

Household Income Average number of car per household

$0 --- $29,999 1.1

30,000 --- 49,999 2.4

50,000 --- 74,999 3.2

75,000 --- 99,999 3.5

100,000 --- 149,999 3.7

150,000 and over 3.9

The relationship between household income and average number of car per household is:

Group of answer choices

a. Fluctuating.

b. Negative.

c. Positive.

d. Terminal.

e. Nonexistent.