Which two signs should be interchanged to make the given equation correct?
$$10÷63\times 7+90-80=100$$

Let's check Option B, which suggests interchanging $\times$ and $÷$.
Rewriting the expression by swapping $\times$ and $÷$:

$$10\times 63÷7+90-80=100$$

Now evaluate using the BODMAS rule:

1. Division: $63÷7=9$

$$10\times 9+90-80=100$$

2. Multiplication: $10\times 9=90$

$$90+90-80=100$$

3. Addition: $90+90=180$

$$180-80=100$$

4. Subtraction: $180-80=100$

$$100=100(\text{Balanced})$$

Therefore, swapping $\times$ and $÷$ rectifies the equation.