Among the following features given below, which architectural feature of the mosques is universal?

A- Their orientation towards Mecca.

B- Placement of the roof.

C- The building material.

D- The colour of the mosque.

A only.

The correct answer is Option 1 - A only.

A- Their orientation towards Mecca.

Some architectural features of mosques are universal such as their orientation toward Mecca, evident in the placement of the mihrab (prayer niche) and the minbar (pulpit). However, there are several features that show variations – such as roof and building materials.