The primary public transport corporation operating buses in Telangana is:

The correct answer is: B) TSRTC

The Telangana State Road Transport Corporation (TSRTC) is the primary public transport corporation operating buses in Telangana, India. It was formed on 2 June 2014, after the bifurcation of Andhra Pradesh. TSRTC has a fleet of over 10,000 buses and operates over 10,000 services daily. It provides inter-city, intra-city, and rural bus services.

The other options are incorrect because:

• APSRTC is the Andhra Pradesh State Road Transport Corporation. It is the primary public transport corporation operating buses in Andhra Pradesh.
• KSRTC is the Karnataka State Road Transport Corporation. It is the primary public transport corporation operating buses in Karnataka.
• MSRTC is the Maharashtra State Road Transport Corporation. It is the primary public transport corporation operating buses in Maharashtra.