If Income Rises from $1,000 to $1,400 and Consumption Rises

Multiple Choice

If income rises from $1,000 to $1,400 and consumption rises from $1,100 to $1,440,the marginal propensity to save (MPS) is

A) 0.15.
B) 0.85.
C) 0.25.
D) 0.20.