What alternative key can be used for lowercase English words?

Practice this question from Group Anagrams - Hash key Pattern Practice Quiz, with options and an explanation.

Question

What alternative key can be used for lowercase English words?

Option A — Correct answer

A 26-count frequency tuple

Option B

A binary search tree root

Option C

A stack of vowels

Option D

A reversed sentence

Explanation

A 26-character frequency count tuple can be used instead of sorting.

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