It took 13 years and multiple labs to complete the first sequencing of the human genome (from 1990-2003).In 2007,a lab could complete the task in four months.This dramatic change in time to completion is a result of

A)more importance being placed on it and thus more money being put into it.
B)the development of high throughput methods and equipment.
C)more scientists becoming interested in the subject.
D)there being an initial learning curve; now we are proficient at it.
E)repetition: once the first one was done, it was easier to repeat it.