(A) one of the surest, easiest, and least expensive ways to begin to halt or even to reverse
(B) one of the most sure, easy, and least expensive ways to begin a halt or even reverse
(C) one of the surest, easiest, and least expensive ways that would begin halting or even reversing
(D) a most sure, easy, and inexpensive way beginning the halting and even reversing of
(E) the most sure, easiest, and inexpensive way that would begin halting or even reversing
Solution:
Comparison
B: most modifies sure, easy and least. Most least is incorrect.
C: that would begin halting or even reversing, it seems as if the ways would begin halting or reversing, this is not what the author intends to say.
D: a most sure is incorrect, definite article is needed and surest is correct. Similarly, most is modifying easy as well which is incorrect (easiest). most inexpensive is awkward. least expensive is correct.
E: same error as B.
A: best choice. Maintains parallelism, right use of superlative degree of comparison in surest, easiest, and least expensive ways to begin to halt
Sentence Correction - 1000 Questions with Solution: