answer this questions please

If income rises from $1,000 to $1,400 and consumption rises from $800 to $1,175, the marginal propensity to consume is percent. 6.25 O 85 O 15 93.75 Question 2 (1 point) According to Keynes, aggregate demand could be too low in an economy. What does this mean? It means there is not enough purchasing power in the economy to maintain stable prices. It means there are too many of some goods produced and too few of other goods produced. It means spending in the economy is too low to bring about full employment. It means that wages may get stuck in a recessionary gap because there is not enough demand (in the economy) to increase them. none of the above