To find the missing term in the given alpha-numeric series, we first analyze the series provided:

• C-24
• H-19
• M-14
• ?
• W-4

We need to identify the pattern both in the alphabetical and numerical parts to find the missing term.

Step 1: Identify the pattern in the alphabetical part:

• The alphabetical sequence is C, H, M, ?, W.
• Analyzing the pattern in the letters, we find:
  • C is the 3rd letter in the alphabet.
  • H is the 8th letter, which is 3 + 5 = 8.
  • M is the 13th letter, which is 8 + 5 = 13.
  • The next letter should be M + 5 = 18, which corresponds to the letter R (since R is the 18th letter in the alphabet).
  • W is the 23rd letter, which is 18 + 5 = 23.
• Thus, the alphabetical pattern increases by 5. The missing letter is R.

Step 2: Identify the pattern in the numerical part:

• The numerical sequence is 24, 19, 14, ?, 4.
• The number reduces by 5 each time:
  • 24 - 5 = 19
  • 19 - 5 = 14
  • 14 - 5 = 9
  • 9 - 5 = 4
• Thus, the missing number is 9.

Putting these patterns together, the missing term in the series is R-9.

Conclusion: The missing term is R-9, which matches the option R-9.