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