The length of the diagonal of a rectangle is $26\text{cm}$ and that of one side is $10\text{cm}$. What is the area of this rectangle?

1. A
   $260{\text{cm}}^2$
2. B
   $120{\text{cm}}^2$
3. C
   $130{\text{cm}}^2$
4. D
   $240{\text{cm}}^2$