Sculptures of deities, temple pillars, and decorative elements are meticulously carved from:

Marble
Granite
Sandstone
Soapstone

The correct answer is: a) Marble

Marble is a metamorphic rock formed from limestone. It is composed of calcium carbonate, which is the same mineral that makes up limestone. Marble is a very hard and durable rock, and it is often used for sculptures, monuments, and other decorative objects.

Granite is an igneous rock formed from magma or lava. It is composed of quartz, feldspar, and mica. Granite is a very strong and durable rock, and it is often used for building construction.

Sandstone is a sedimentary rock formed from sand. It is composed of quartz grains that have been cemented together. Sandstone is a relatively soft rock, and it is often used for building construction.

Soapstone is a metamorphic rock formed from talc. It is composed of talc, magnesium carbonate, and water. Soapstone is a very soft rock, and it is often used for carving sculptures and other decorative objects.

Marble is the most common material used for sculptures of deities, temple pillars, and decorative elements. It is a hard, durable stone that can be easily carved into intricate designs. Marble is also a beautiful stone that can be polished to a high shine.