In MS Word, which of the following creates a new paragraph?

The correct answer is: (b) Enter 

i.e. In MS Word, pressing Enter creates a new paragraph.

Explanation of each option's work:

a) Space bar: This key simply adds a space between characters or words within the same paragraph.

b) Enter: This key creates a new paragraph by inserting a paragraph break. It moves the cursor to the beginning of the next line and starts a new paragraph.

c) Backspace: This key deletes characters to the left of the cursor. It doesn't create new paragraphs.

d) Tab: This key typically indents the current line or moves the cursor to the next tab stop. Obviously in same paragraph.