Official Solution:Based on induced stem cell techniques akin to those used for research purposes in mice to trigger regeneration of repaired cells, scientists are now well set to exploit stem cell theories into practical cures for a variety of dreaded ailments of man such as cancer, Parkinson’s disease, spinal cord injuries and multiple sclerosis.A. Based on induced stem cell techniques akin to those used for research purposes in mice to trigger regeneration of repaired cells,
B. Based on induced stem cell techniques akin to those used for research purposes in mice so that the regeneration of repaired cells may be triggered,
C. Using induced stem cell techniques akin to those used for research purposes in mice to regenerate repaired cells,
D. Using induced stem cell techniques akin to those used for research purposes in mice, which triggers regeneration of repaired cells,
E. Using induced stem cell techniques akin to those used for research purposes in mice that trigger regeneration of repaired cells,
(A) Based on is not the right idiom to refer/modify to the "scientists"
(B) Same reason as in A
(C) CORRECT. Concise and properly modifies "Scientists".
(D) First part of the modifier is correct, but "which triggers regeneration of repaired cells" refers to mice, the nearest noun. That changes the meaning.
(E) Same reason as D, just that 'which' is replaced with 'that'.
Answer: C