The short cut used for inserting line break:AShift + enterBCtrl + enterCCtrl + KDAlt + enterAnswer: A. Shift + enter Read Explanation: Shift + EnterPressing Shift + Enter inserts a line break (also called a soft return) without starting a new paragraph.Shift + Enter: Line break (Soft Return) – keeps the text within the same paragraph and maintains the current line spacing/formatting.Enter: Paragraph break (Hard Return) – ends the current paragraph and starts a brand new one with standard paragraph spacing. Read more in App