If a meaningful word is formed using the first, sixth, seventh, and ninth letters (from the left end) of the word “GEOSTATIC”, which of the following will be the second letter from the left end of the meaningful word formed? If more than one such word can be formed, mark Z as your answer. If no meaningful word is formed, mark X as your answer.

The correct answer is X.

Step-by-step Explanation:

Step 1: Identify the given word and count the positions of its letters from the left end.

The given word is GEOSTATIC.

Let us list the letters along with their positional numbers from the left:

1st letter: G
2nd letter: E
3rd letter: O
4th letter: S
5th letter: T
6th letter: A
7th letter: T
8th letter: I
9th letter: C

Step 2: Extract the specified letters.

We need to take the 1st, 6th, 7th, and 9th letters of the word “GEOSTATIC”:

• 1st letter = G
• 6th letter = A
• 7th letter = T
• 9th letter = C

The set of four extracted letters is: G, A, T, C.

Step 3: Check for meaningful English words.

We need to determine if any standard 4-letter English word can be formed using all four letters (G, A, T, C) exactly once.

Let us test the possible permutations of these four letters:

• Words starting with G: GATC, GACT, GTAC, GTCA, GCAT, GCTA (None are standard English words)
• Words starting with A: AGTC, AGCT, ATGC, ATCG, ACGT, ACTG (None are standard English words)
• Words starting with T: TGAC, TGCA, TAGC, TACG, TCGA, TCAG (None are standard English words)
• Words starting with C: CGAT, CGTA, CAGT, CATG, CTGA, CTAG (None are standard English words)

Since no valid, standard English word can be formed using the letters G, A, T, and C, we follow the condition given in the problem statement:

"If no meaningful word is formed, mark X as your answer."

Therefore, the answer to be marked is X.