Sentence Correction

Although limited in their usefulness thus far, the company board's several entrepreneurs believe that what the two programmers have developed is the start of something very important.

A) Although limited in their usefulness thus far, the company board's several entrepreneurs

B) Based on the limited usefulness thus far, several of the entrepreneurs on the company board

C) With the limited usefulness thus far, several of the entrepreneurs on the company board

D) Despite the limited usefulness thus far, the several entrepreneurs on the company board

E) While limited in usefulness thus far, the several entrepreneurs on the company board

OAD

Hi Experts ,

Please explain.

Many thanks in advance.

SJ