Which of the following best expresses the argument that FSU's use of trademark is something of a "hack," AKA $*$not$*$ in line with trademark's typical purpose?

a$.$ Public universities cannot own brands.

b$.$ Buyers of FSU gear probably don't care about who made it$.$

c$.$ Changing a logo isn't covered by trademark.

d$.$Garnet and Gold$$ can't be protected.