Which two signs and two numbers should be interchanged to make the following equation correct?
$$784 \div 6 \times 9 − 30 + 14 = 528$$

A

14 and 6, $$+$$ and $$-$$

B

784 and 30, $$+$$ and $$\times$$

C

784 and 6, $$\times$$ and $$-$$

D

9 and 6, $$\div$$ and $$+$$