Which sentence properly combines these two sentences through the use of an appositive? the head chef is an expert in chinese cuisine. she took me on a tour of the kitchen.
a. the head chef took me on a tour of the kitchen; her expertise is in chinese cuisine.
b. the head chef took me on a tour of the kitchen, and her expertise is in chinese cuisine.
c. the head chef, an expert in chinese cuisine, took me on a tour of the kitchen.
d. the head chef who took me on a tour is an expert in chinese cuisine.

explanation:

the silver bells of the sleds are merry and keep time in the winter nights while the sky twinkles happily. the golden bells of weddings are delightful in their peaceful happiness, foretelling a rapturous future. meanwhile, the brazen alarm bells scream frightfully in the night, with a discordant and desperate sound. in their clamor, these bells convey terror, horror, and anger. finally, the iron bells are solemn and melancholy, while those in the church steeple are like ghouls who feel happiness. the king of the ghouls, who rings the bells, cheerfully keeps time with the moaning and groaning bells.