Step 1: Identify the words.
The given words are "Accept," "Except," "Expanct," and "Aspect."
Step 2: Check spelling validity.
- Accept = correct spelling, means "to receive."
- Except = correct spelling, means "excluding."
- Expanct = incorrect, mis-spelled word (intended word could be "Expect").
- Aspect = correct spelling, means "a particular feature."
Step 3: Conclusion.
Thus, the mis-spelled word is (C) Expanct.