The place where her father disappeared and the reason why he did are unknown to her.
The place where her father disappeared and the reason why he did are unknown to her.
Solution
This question tests parallel structure and avoiding redundancy.
Parallel structure means matching grammatical forms in related sentence parts. Think of it like matching socks—both elements should have the same "style." Also, we avoid redundant words when the meaning is already clear, like saying "the reason why" when "the reason" alone works perfectly.
Option 1 → Missing "where" breaks the parallel structure completely.
Option 2 → Perfect parallel structure: both parts match grammatically and concisely.
Option 3 → Missing "where" disrupts the balanced structure needed here.
Option 4 → "Why" is redundant since "reason" already implies it.
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IPMAT Indore 2022
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