Two reactions start with $[\mathrm{A}{]}_0=1.00\mathrm{M}$ and both have a half-life of $10\min$ (the first is zero order, the second is first order, $\ln 2=0.693$). Select the correct statements.

1. ABoth have $[\mathrm{A}]=0.50\mathrm{M}$ at $t=10\min$.
2. BAt $t=20\min$ the first order reaction has $[\mathrm{A}]=0.125\mathrm{M}$.
3. CAt $t=5\min$ the zero order reaction has the higher concentration (0.750 M against 0.707 M).
4. DThe initial rate of the first order reaction (0.0693 $\mathrm{M}\mathrm{mi}{\mathrm{n}}^{-1}$) exceeds that of the zero order reaction (0.0500 $\mathrm{M}\mathrm{mi}{\mathrm{n}}^{-1}$).