Detailed Instructions: Given a math problem with context and a question and 5 answer choices, the task is to provide the correct answer choice based on the problem. You must choose one of the given answer choices by letter: a, b, c, d, or e; anything else is invalid.
Q: Problem: you need to unlock a secret code using following clues, can you ? here you have the clues: clue - 1: 0 7 9 ( one of the numbers is correct and is placed in its correct position ) clue - 2: 0 3 2 ( nothing is correct ) clue - 3: 1 0 8 ( two numbers are correct but not placed at its correct position. ) clue - 4: 9 2 6 ( one number is correct but not placed at its correct position. ) clue - 5: 6 7 8 ( one number is correct but not placed at its correct position. )
Options: a. 819, b. 918, c. 198, d. 189, e. 891
A:
a