Which order of the rate of E1 elimination in ethanol is correct for the tertiary halides $(\mathrm{CH}{}_3){}_3\mathrm{C}-\mathrm{X}$?

1. A$(\mathrm{CH}{}_3){}_3\mathrm{C}-\mathrm{Br}>(\mathrm{CH}{}_3){}_3\mathrm{C}-\mathrm{I}>(\mathrm{CH}{}_3){}_3\mathrm{C}-\mathrm{Cl}>(\mathrm{CH}{}_3){}_3\mathrm{C}-\mathrm{F}$
2. B$(\mathrm{CH}{}_3){}_3\mathrm{C}-\mathrm{F}>(\mathrm{CH}{}_3){}_3\mathrm{C}-\mathrm{Cl}>(\mathrm{CH}{}_3){}_3\mathrm{C}-\mathrm{Br}>(\mathrm{CH}{}_3){}_3\mathrm{C}-\mathrm{I}$
3. C$(\mathrm{CH}{}_3){}_3\mathrm{C}-\mathrm{I}>(\mathrm{CH}{}_3){}_3\mathrm{C}-\mathrm{Br}>(\mathrm{CH}{}_3){}_3\mathrm{C}-\mathrm{Cl}>(\mathrm{CH}{}_3){}_3\mathrm{C}-\mathrm{F}$
4. D$(\mathrm{CH}{}_3){}_3\mathrm{C}-\mathrm{Cl}>(\mathrm{CH}{}_3){}_3\mathrm{C}-\mathrm{Br}>(\mathrm{CH}{}_3){}_3\mathrm{C}-\mathrm{I}>(\mathrm{CH}{}_3){}_3\mathrm{C}-\mathrm{F}$