Which of the following are the examples of complementary goods ?

(A) pen and ink

(B) tea and sugar

(C) tea and coffee

(D) ball pen and gel pen

(E) shoes and socks

Choose the correct answer from the options given below :

(A), (B) and (E) only

The correct answer is option (2) : (A), (B) and (E) only

Complementary goods are items that are often used together because the use of one good tends to enhance the use of the other.

• (A) Pend and ink : These are often used together in writing, making them complementary.
• (B) Teas and sugar : Often used together in preparing tea, making them complementary.
• (E) Shoes and socks : Worn together, with the use of one enhancing the use of the other.

• (C) Tea and coffee: These are alternatives to each other, not complementary goods.

• (D) Ball pen and gel pen: Both are types of pens, but they serve the same purpose and are not used together in a complementary manner.