Correct option is C
Given:
We need the descending list of three-digit odd numbers whose three digits are all different, and pick the 6th largest.
Formula / Logic Used:
Scan odd numbers from largest (999 downward), skip any number with repeated digits, and count distinct-digit odd numbers until the 6th is reached.
Solution:
Checking odd numbers from the top (skipping those with repeated digits):
999 (repeat) — skip
997 (repeat) — skip
995, 993, 991, 989 (repeats) — skip
987 → distinct (1st)
985 → distinct (2nd)
983 → distinct (3rd)
981 → distinct (4th)
979, 977 (repeats) — skip
975 → distinct (5th)
973 → distinct (6th)
Correct Answer: (c) 973
