Answer:
C. Ctrl+k.
Step-by-step explanation:
The bash shell is a command processor interface in Linux operating system as a default login shell. There are other versions for operating systems like Windows and Mac OS. A user can input a plain text command to the command line interface and use different key combinations to initiate different action.
The key combination used to delete the content of the command line from the position of the cursor is the Ctrl+k combination.