Answer:
Checking Account with Bank D
Explanation:
Nathan's conditions for the checking account include
Bank A will not be suitable because the minimum balance required by the bank ($500) is higher than Nathan's available funding ($300).
Bank B will not be suitable because it offers the same features on checking account with Bank D. But Bank D's checking account has an additional advantage of 0.1% interest (interest is zero for Bank B) and the possibility of zero monthly fee which will accrue from the direct deposit offered by Nathan's employer.
Bank C will not be suitable because it has a higher ATM fee ($2 per transaction vs. zero for Bank D).
Therefore Bank D's checking account is the best for Nathan.