AMO · 2027 · Grades 6-7 · Self-study SET 32 Question 4

Define $n!=n\times(n-1)\times\cdots\times2\times1$. For example, $4!=4\times3\times2\times1=24$ and $3!=3\times2\times1=6$. Simplify
$$\frac{29!\times29!}{28!\times28!}.$$

**Input:** Choose one option.