Which of the following sentences includes a non-restrictive clause?

Question

a) Ronit knew that she enjoyed gardening, but she didn't realize how much she loved it until now.

b) Ronit learned a lot about gardening the first year at her new house.

c) Ronit really enjoyed gardening, so she bought a house with lots of land.

d) Ronit, who really enjoyed gardening, bought a house with lots of land for her dream garden.

Answer 1

d) Ronit, who really enjoyed gardening, bought a house with lots of land for her dream garden.