Which of the following are non-metallic minerals?

(A) Mica

(B) Bauxite

(C) Granite

(D) Potash

Choose the correct answer from the options given below:

Option 1 -> Includes Mica (non-metallic silicate), Granite (non-metallic rock), and Potash (non-metallic salt) - all are correctly classified as non-metallic minerals.

Option 2 -> Includes Bauxite, which is a metallic mineral as it is the primary ore of aluminum, making this option incorrect.

Option 3 -> Includes Bauxite (metallic mineral), which disqualifies this option.

Option 4 -> Includes Bauxite (metallic mineral), which makes this option incorrect.

Hence, Option 1: (A), (C) and (D) only -> Mica is a silicate mineral used as an insulator, Granite is an igneous rock used in construction, and Potash refers to potassium salts used as fertilizers - all three are non-metallic minerals. Bauxite is excluded as it is a metallic mineral (aluminum ore) -> correct