Daniel Defoe's novels mainly focus on（ ）.
A、the struggle of the unfortunate for mere existence
B、the struggle of the shipwrecked persons for security
C、the struggle of the pirates for wealth
D、the desire of the criminals for property
【正确答案】：A
【题目解析】：丹尼尔·笛福的作品主要关注了人们为了生存而进行的不懈斗争，故A选项描述正确。
