If '$$-$$' stands for 'division', '$$+$$' for 'multiplication', '$$\div$$' for 'substraction' and  '$$\times$$' for 'addition',  then which one of the following equations is correct?

A

$$6 + 20 - 12 \div 7 - 1 = 38$$

B

$$6 - 20 \div 12 \times 7 + 1 = 57$$

C

$$6 + 20 - 12 \div 7 \times 1 = 62$$

D

$$6 \div 20 \times 12 + 7 - 1 = 70$$