Final answer:
Without knowing Ken's previous account balance, we cannot determine the increase in direct deposit from the options provided.
Step-by-step explanation:
To determine the increase in Ken's pay that was directly deposited into his account, we need prior information about Ken's account balance before the deposit. Since that information is not provided in the question, it is not possible to accurately calculate the increase in direct deposit solely based on the new balance of $982.01. Therefore, without additional context or previous balance data, it is impossible to select the correct answer from the given options: a) $70.81 b) $80.33 c) $91.12 d) $92.33.