Re: Experimental stem-cell procedures on conditions such as arthritis and

Experimental stem-cell procedures on conditions such as arthritis and hair loss are taking place in medical clinics all over the country even though little evidence and statistics exist concerning their effectiveness and safety over time.

A) little evidence and statistics exist concerning their

B) little evidence and statistics exists concerning the

C) few statistics or little evidence exists with concern to the

D) little evidence and few statistics are available concerning the treatments

E) few statistics and evidence exist concerning the

My Approach:

Evidence is non-countable but Statistics can be counted
So little evidence should be correct and fewer statistics.

Little is modifying moth evidence and statistics in A and B
C- Usage of OR is wrong...
E- few modifying evidence and statistics - wrong

D should be the answer