Without any trouble you are safely travelling towards your desination. It is just then that you come across a cave, in Nepal. The owl says that the cave is a short-cut, but the journey would be difficult, with many obstacles along the way. Brilliant as you all are, you decide to take the challenge.
The cave is dark. One of you switches a flashlight on, and leads the way. Soon, you encounter a room with many book shelves. A door is on the other end of the room. As you observe the books, you notice that one book is very old, but the others are new. You realize that the old book may have the key for the door! You open the book and look through the pages. In the middle of the book, you see an odd figure, like the one below.
You think of a theory, and start solving the puzzle. The lines originating from the centre, divide each pentagon into 10 equal parts or wedges. The part between two immediate pentagons is a ring.
Remaining letters must be filled in such that: 1. Each ring must contain all the letters of the word “TOUCHLINES” 2. Every two adjacent wedges together must contain all letters of the word “TOUCHLINES”.

The above puzzle has four boxes. Starting from the outermost ring and going inwards, note the letters and compare with the options given below.
Which of the following is the correct answer?

Options

A. NEST
B. SHIN
C. ETCH
D. SLIT

Explanation

C
You can take the following question as a pentagon Sudoku. Therefore, after completing the task the pentagon look something like this:

The letters in the boxes starting from outer ring are E,T,C,H. hence the answer is ETCH.