题目选项分析

Since he was very reluctant to carry any extra weight on his plane when he was attempting his solo transatlantic flight, so Charles Lindbergh refused to carry even a pound of mail, despite being offered $1,000 to do so.

Very reluctant to have any extra weight on his plane when he attempted his solo transatlantic flight, Charles Lindbergh refused to carry even a pound of mail, despite being offered $1,000 to do so.