Which tributary of the Godavari River forms a border between Telangana and Maharashtra?

The correct answer is D) Pranahita.

The Pranahita is a tributary of the Godavari River that forms a border between Telangana and Maharashtra. It originates in the Western Ghats of Maharashtra and flows eastward through Telangana before joining the Godavari River near Rajahmundry. The Pranahita is a major source of irrigation for the Telangana region and is also a popular destination for white-water rafting.

The other options are incorrect because they are not tributaries of the Godavari River.

• Kinnerasani is a tributary of the Krishna River.
• Maner is a tributary of the Yamuna River.
• Peddavagu is a tributary of the Tungabhadra River.