Last summer, Roger worked \(x\) days at \(2\) hours/day at a job, and he was paid at a rate of \(r\) dollars per hour. For the whole summer, he earned \(\$1000.\) This summer, he will work at another job that offers the same pay rate, \(r\) dollars per hour. This summer he will work \(H\) days at \(5\) hours/day, so that he will earn \(\$4000\) for the entire summer. In terms of \(x,\) which of the following equals \(H?\)

A. \(x\)
B. \(2x/3\)
C. \(2x\)
D. \(4x/3\)
E. \(8x/5\)

The OA is E