When arsenic chloride, $\text{AsCl}_3$, is reacted with sodium borohydride, $\text{NaBH}_4$. $ p\text{AsCl}_3 + q\text{NaBH}_4 \rightarrow r\text{AsH}_3 + s\text{NaCl} + t\text{BCl}_3 $ When this equation is balanced correctly, what are the values of $p$, $q$, $r$, $s$ and $t$?
- A$p=2$, $q=3$, $r=2$, $s=3$, $t=1$
- B$p=3$, $q=3$, $r=3$, $s=3$, $t=2$
- C$p=4$, $q=3$, $r=4$, $s=3$, $t=3$
- D$p=4$, $q=4$, $r=4$, $s=4$, $t=3$