It was Sunday yesterday. The weather was fine. It was sunny and there were no clouds in the sky. Sandy and Sue got up early in the morning. Now they were in the park. It is a big park and it's so beautiful. They saw many people there. Some boys played football on the grass. Some girls danced under the tree. An old man walked beside the lake. A young woman and her little son looked at the fish in the lake. How happy they are!

为了倡导绿色出行，某市实施专项鼓励政策；购买一辆纯电动汽车，最高可获得国家、市两级补贴3万元。若用D₁到D₂表示政策前后的变化，不考虑其它因素。该政策的影响可以用图表示（   ）

小王五年前筹资开了一家“好再来”小饭馆，自己既当老板又当服务员，后来生意越来越火，成立了“好再来股份有限公司”，有十几家餐饮连锁店分布全国各地，小饭馆的经营形式是（    ）