Correct option is D
A single-riveted lap joint consists of two overlapping plates joined together by a single row of rivets. The term “single-riveted” directly refers to the number of rivet rows used in the joint. This type of joint is simple and economical but has lower strength compared to double or triple-riveted joints. It is commonly used in light structural applications where high strength is not required. Options mentioning multiple rows (two, three, or four) describe stronger joints but do not match the definition of a single-riveted joint.
