The correct answer is:

Both A and R are true, and R is the correct explanation of A.

Explanation:

The assertion (A) states that the Turkish administration in India was essentially military, which is true. When the Turks initially invaded and established their rule in parts of India, their administration was primarily military in nature. The Turkish rulers relied on their military prowess and appointed military leaders to govern and maintain control over the conquered territories.

The reason (R) provided supports the assertion by stating that the country was parcelled out as `Iqtas` among leading military leaders. `Iqtas` refers to a system of land grants given to military commanders and nobles as a reward for their services. These military leaders were granted control over specific territories, and they governed and collected revenues from those regions. This system helped the Turkish rulers maintain military control over different parts of India.

Therefore, both assertion (A) and reason (R) are true, and the reason correctly explains why the Turkish administration in India was primarily military.