Answer:
a. 0.60.
Step-by-step explanation:
Marginal Propensity to Consume is a metric which enables to measure the increase in consumer spending when there is increase in consumer disposable income. The proportion of disposable income with increase in spending is known as marginal propensity to consume.
The correct answer is 0.60. This is calculated by dividing consumption by the spending.
Marginal propensity to consume = $900 / $1,500
Marginal propensity to consume = 0.60.