How many different words can be formed by jumbling the letters in the word MISSISSIPPI in which no two $$S$$ are adjacent?

A

$$8 \cdot {}^6 C_4 \cdot {}^7 C_4$$

B

$$6 \cdot 8 \cdot {}^7 C_4$$

C

$$6 \cdot 7 \cdot {}^8 C_4$$

D

$$7 \cdot {}^6 C_4 \cdot {}^8 C_4$$