Indicate whether the following transfers are considered gifts. Select "Yes, a gift" or "Not a gift," whichever is applicable.

a$.$ Transfers to political organization.

b$.$ Tuition payments made to an educational organization $($e$.$g$.,$ a college$)$ on another's behalf.

c$.$ Amounts paid to doctors on another's behalf for medical care.

d$.$ Amounts paid for child support.