题目选项分析

After the Civil War, contemporaries of Harriet Tubman's maintained that she has all of the qualities of a great leader：coolness in the face of danger, an excellent sense of strategy, and an ability to plan in minute detail.

After the Civil War, contemporaries of Harriet Tubman maintained that she had all of the qualities of a great leader：coolness in the face of danger, an excellent sense of strategy, and an ability to plan in minute detail.