答案：B

本题考点为强调句型，被强调的部分是：from only a few supplies that she had bought in the village。将强调句的基本框架“It is/was...that/who...”去掉后可得：The hostess cooked such a nice dinner from only a few supplies that she had bought in the village.(女主人用从农村所买的食品做了如此美味的一餐。)原句句意完整无缺，是强调句。