How many meaningful 4 -letter English words can be formed using 2nd, 3rd, 4th and 5th letters of the word TEACHER, without repetition?

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` for line breaks. - State the correct answer/option at the beginning of the explanation. - MathML & HTML formatting (no LaTeX, no html hex entities for math, raw unicode for minus `-`, etc., no `display="block"`). Let's double-check formatting to ensure total compliance: - Start paragraph: `

The correct option is Two.

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The correct option is Two.

Step-by-step Explanation:

Step 1: Identify the specified letters from the given word.
The given word is TEACHER.
Let's write down the position of each letter in the word:
1st letter = T
2nd letter = E
3rd letter = A
4th letter = C
5th letter = H
6th letter = E
7th letter = R

From the above analysis, the 2nd, 3rd, 4th, and 5th letters are:
2nd letter: E
3rd letter: A
4th letter: C
5th letter: H

Step 2: Form meaningful 4-letter English words using these letters without repetition.
Using the set of letters {E, A, C, H}, we can form the following valid English words:
1. EACH
2. ACHE

No other meaningful 4-letter English words can be formed using these four letters without repeating any letter.

Therefore, a total of Two meaningful words can be formed.