Which line of code should you add at line 03?

You are creating a web page that contains a canvas with text.
The page contains the following JavaScript code. (Line numbers are included for reference only.)

The text on the canvas must rotate 90 degrees when a user clicks a button on the page.
You need to ensure that the text rotates when the user clicks the button.
Which line of code should you add at line 03?
A. context.transform(90);
B. context.content.getRotation(90);
C. context.rotate(90);
D. context.content.rotate (90);