Answer:
a higher interest rate
Step-by-step explanation:
In the case when there is a supply of real money and it becomes constant so here the liquidity preference theory denotes that if there is a level of the higher income so it would be consistent with the interest rate i.e. higher
The liquidity preference theory means the theory where the investor demand the rate of interest i.e. higher that has long term maturities with high risk
So as per the given situation, the higher interest rate is the answer