The correct answer is: A. Topra Inscription.
The Topra Inscription is a stone inscription found in Topra, Haryana, India. It is dated to the 5th century CE and is written in the Sanskrit language. The inscription records the gift of a horse by a king named Harshavardhana to a temple in Pehowa. This inscription provides evidence that Pehowa was famous for horse trading in the ancient period.
The other options are incorrect because they do not provide information about Pehowa being famous for horse trading in the ancient period.
The Ropar Inscription is a stone inscription found in Ropar, Punjab, India. It is dated to the 2nd century BCE and is written in the Brahmi script. The inscription records the gift of a village by a king named Ashoka to a Buddhist monastery.
The Bhojdeva Inscription is a stone inscription found in Bhojpur, Madhya Pradesh, India. It is dated to the 11th century CE and is written in the Sanskrit language. The inscription records the gift of a village by a king named Bhojdeva to a temple.
The Banawali Inscription is a stone inscription found in Banawali, Haryana, India. It is dated to the 2nd millennium BCE and is written in the Indus script. The inscription is undeciphered.