please help me on this question

1. The gure given below illustrates the impact of an export subsidy as imposed by a large country. No imports are permitted. Domestic price with subsidy World price World price with subsidy D D1 So 51 Quantity a. Identify {indicate the letters for specific area[s]] the cost to the government of the indicated subsidy as shown by area[s). b. What is the net impact on the consumer surplus [indicate the letters for specific area(s]] of the export subsidy provided by the domestic government? Is it positiveegative? c. What is the net impact on the producer surplus (indicate the letters for specific area[s)) of the export subsidy provided by the domestic government? Is it positiveegative? d. Identify (indicate the letters for specific area[s)] production and consumption effects. Is it positiveegative? e. Identify (indicate the letters for specific area[s]] the net change in national welfare due to the provision of the export subsidy by the domestic government