Question

the carnival that was in town last week had a ferris wheel, which is my favorite. restrictive independent nonrestrictive

Explanation:

A nonrestrictive clause provides extra information and is set off by commas (or in this case, the context shows it's additional info about the Ferris Wheel). A restrictive clause limits the noun, and "independent" is not a clause type here. The clause "which is my favorite" adds non - essential info about the Ferris Wheel, so it's nonrestrictive.

Answer:

nonrestrictive