The correct answer is: A) Developing industrial parks.
The Telangana State Industrial Infrastructure Corporation (TSIIC) is a state-owned enterprise that was established in 1996 to promote industrial development in the state of Telangana. TSIIC plays a key role in developing industrial parks, which are areas that are specifically designated for industrial development. Industrial parks provide a number of benefits to businesses, including access to infrastructure, such as roads, water, and electricity, as well as access to other businesses and resources. TSIIC also provides a number of other services to businesses, such as land acquisition, project development, and marketing.
Option B: Tax collection is a function of the government, not of a state-owned enterprise like TSIIC.
Option C: Skill development is a broader issue that is not specific to industrial development. TSIIC may provide some training services to businesses, but this is not its primary focus.
Option D: Tourism promotion is also a broader issue that is not specific to industrial development. TSIIC may provide some support to tourism businesses, but this is not its primary focus.