Which one is White-Mica?

Answer: Option A

Muscovite is also known as White Mica.
It represents a group of dioctahedral sheet silicates which are commonly formed in low-grade metamorphic and hydrothermally altered rocks.
Mica insulation is used in high-temperature and fire-resistant power cables in aluminum plants, blast furnaces, critical wiring circuits, heaters, boilers, etc.