Three capacitors of capacitances $2~\text{pF},$ $3~\text{pF},$ and $4~\text{pF}$ are connected in parallel. The charge on the $4~\text{pF}$ capacitor, if the combination is connected to a $100~\text V$ supply, is:
1. $4\times10^{-10}~\text C$ 
2. $3\times10^{-9}~\text C$ 
3. $2\times10^{-10}~\text C$ 
4. $1\times10^{-9}~\text C$