并列和从句结构

Mikepei

在Manhattan SC的parsllelism一节的练习第13题的后半部分的并列中：,and who has the experience....”既然是两个并列不应该有逗号啊

13. Voters to elect a president WHO genuinely cares about health care, the environment, and the travails of ordinary men and women, AND WHO has the experience, wisdom, and strength of character required for the job.

Mikepei

有大神可以推荐一下啥帖子吗？