Which sentence contains correct parallel structure?

a. The manager told Ani yesterday that she did a good job because she completes her work on time and working well with her co-workers.

b. The manager told Ani yesterday that she did a good job because she completes her work on time and worked well with her co-workers.

c. The manager told Ani yesterday that she did a good job because she completed her work on time and worked well with her co-workers.

d. The manager told Ani yesterday that she did a good job because she completed her work on time and will work well with her co-workers.