Step 1: Match each term in List-I to its correct category in List-II.
(A) Red, Yellow and Blue: These are the traditional (IV) Primary Colours used in pigment mixing.
(B) Line, Shape and Form: These are fundamental building blocks of visual art, known as the (I) Elements of Art.
(C) Balance, Harmony and Rhythm: These concepts describe how the elements of art are arranged in an artwork. They are (III) Principles of Composition.
(D) The secondary colour opposite to the primary colours...: This is the definition of a complementary color, which is a concept within the broader subject of (II) Colour theory.
Step 2: Combine the matches: (A)-(IV), (B)-(I), (C)-(III), (D)-(II). This corresponds to option (3).