Can't stand it ....i must ask this question

<p>Elizabeth Elliot is BEST KNOWN for her historical accounts that FOCUS ON ordinary lives, especially THAT OF women, RATHER THAN on larger political and socioeconomic events. NO ERROR</p>

<p>answer and explanation...? answer is actually is THAT OF ...why?</p>

<p>It’s talking about multiple lives. “That” is singular; you need a plural answer. “Those” refers to multiple lives and is appropriate here. Since “that of” is incorrect, so it’s the answer.</p>

<p>It should be Those of, not that of.</p>