The maximum amount for accepting unsolicited gifts is $20. Therefore, the correct answer is: d) $20
Government employees may accept unsolicited gifts valued at $20 or less per source per occasion. However, the aggregate market value of individual gifts from a single person should not exceed $50 in a calendar year.
This exception excludes gifts of cash or investment interests such as stock, bonds, or certificates of deposit. If the market value of a gift exceeds $20, the employee cannot pay the excess value to accept that portion. Additionally, if the aggregate value of tangible items offered on a single occasion surpasses $20, the employee has the option to decline distinct and separate items to comply with the $20 limit.
Option D is the answer.