Currency Depreciation and Balance of Trade

CFA Level I Economics
#1

Currency depreciation is most likely to affect the balance of trade when a country’s imports are goods that:

A) have relatively inelastic demand.

B) have close substitutes.

from Kaplan Schweser…

Why the answer is not A. If the demand in inelastic that means even after the price increase (due to depreciation) people will keep buying the costly good and result in trade deficit.

What am I missing?

#2

The answer is not A because according to the Marshall Lerner condition, in order for currency depreciation to have the greatest impact on trade balance, the country needs to have elastic goods. Having close substitutes is one condition which makes goods more elastic.