The correct answer is: d) Kannada.
The dialects spoken in the northern coastal districts of Andhra Pradesh show influence from Kannada because of the historical and cultural ties between the two regions. Kannada was the official language of the Vijayanagara Empire, which ruled over much of Andhra Pradesh from the 14th to the 16th centuries. During this time, Kannada culture and language spread to Andhra Pradesh, and many Kannada words and phrases were borrowed into the local dialects.
Odia, Bengali, and Marathi are all languages spoken in neighboring states, but they do not have as much influence on the dialects of Andhra Pradesh. This is because these languages were not as widely spoken in the region during the Vijayanagara period.
In addition to Kannada, the dialects of Andhra Pradesh are also influenced by Telugu, the official language of the state. Telugu is the most widely spoken language in Andhra Pradesh, and it has had a significant impact on the development of the local dialects. However, the influence of Telugu is not as strong in the northern coastal districts, where Kannada is more dominant.
The dialects of Andhra Pradesh are a rich and diverse linguistic heritage. They reflect the history and culture of the region, and they are a testament to the cultural ties between Andhra Pradesh and its neighbors.