Choose the odd one out.

The odd one out is B, MVUN.

The other options, A, HSRI, C, OLKP, D, PJQX, and E, WDCX, all have the following properties:

• They are all 5-letter strings.
• They all contain the letter "M".
• They all contain the letter "N".
• They all contain the letter "U".
• They all contain the letter "V".
• They all contain the letter "X".

B, MVUN, does not have the letter "X".