The average age of $8$ men is increased by $2\text{ years}$ when two of them, whose ages are $21\text{ years}$ and $23\text{ years}$, are replaced by two new men. What is the average age of the two new men?
Options:
- A: $28\text{ years}$
- B: $30\text{ years}$
- C: $32\text{ years}$
- D: $35\text{ years}$
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