वर्तमान उत्तर प्रदेश में गोमती और गंडक नदियों के बीच उपजाऊ मैदानों में स्थित किस प्राचीन महाजनपद की राजधानी श्रावस्ती थी?

Consider the following statements related to the Kosala region in ancient India (occupying parts of present-day Uttar Pradesh): 1. The political and territorial importance of the Kosala region significantly increased from the later Vedic period into the Mahajanapada era. 2. The primary economic development and expansion of Kosala was based entirely on overseas maritime trade routes. Which of the statements given above is/are correct?