Given a text T, and several options, according to the question posed in the text T to choose the most appropriate option from the options as the answer, please directly output the most appropriate option, do not need to output the explanation.

When a central bank announces a decrease in its official policy rate, the desired impact is an increase in:
Option A:investment.
Option B:interbank borrowing rates.
Option C:the national currency’s value in exchange for other currencies.

Answer: A