Final answer:
The largest new loan that Bank ABC could initially make while maintaining its target reserve ratio is $90,000(option c).
Step-by-step explanation:
In order to determine the largest new loan Bank ABC could initially make while maintaining its target reserve ratio of 10%, we need to calculate the required reserves. Required reserves are calculated by multiplying the deposit amount by the reserve ratio.
For Bank ABC, the new deposit is $100,000 and the reserve ratio is 10%.
So, the required reserves would be $100,000 x 10% = $10,000.
Therefore, the largest new loan that Bank ABC could initially make while maintaining its target reserve ratio is $100,000 - $10,000 = $90,000 (option C).