Review the following case study and provide concise, to-the-point responses to the subsequent questions. Responses should be expressed with clarity and precision.

Bangladesh's foreign exchange reserves have surged to the $33 billion mark, boosted by a massive influx of remittance and strategic dollar purchase by the central bank. According to the latest data from Bangladesh Bank, expatriate Bangladeshis sent more than $3 billion in December, 2025. The robust inflow has provided critical support in easing the country's ongoing dollar shortage and stabilizing the economy. Total gross reserve now stand at $33.18 billion.

To maintain market stability and build a safety net, the central bank also purchases dollar from commercial banks. Bangladesh Bank purchased over $1 billion in December alone. "We are building our reserves by purchasing dollars from our own internal economy rather than relying on external loans from the IMF or other agencies," the Bangladesh Bank remarked describing the strategy as a sustainable and positive decision for the nation's financial health.