Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Who is no. 79 directed by?

### Inputs:
table_name: table, columns: ['No.', '#', 'Title', 'Directed by', 'Written by', 'U.S. viewers (million)', 'Rank (week)', 'Original air date']

### Response:
SELECT Directed by FROM table WHERE No. = 79