Suppose When the Consumer's Income Rises by 100%, the Consumer's $x$

Multiple Choice

Suppose when the consumer's income rises by 100%, the consumer's consumption of good $x$ only increases by 1%. We can infer that the consumer's income elasticity for good $x$ is:

A) $- 0.01$
B) $- 1$
C) $0.01$
D) 1