Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.
234 * 345 * 456 * 567 * 678 * 12

A

$$ -, +, +, -, = $$

B

$$\div, -, +, -, =$$

C

$$+, \times, +, -, =$$

D

$$+, -, +, -, =$$