Official Solution:
Hydraulic rescue tools, colloquially known as Jaws of Life, are used by emergency response personnel to remove crash victims from damaged vehicles. Hydraulic tools have on most occasions completely replaced traditional tools, such as crowbars and circular saws. Unlike crowbars and circular saws, hydraulic tools do not create spark or cause structural damage, and therefore they are less frightening to crash victims and ___________________.
A. can perform the functions of both a crowbar and a circular saw.
B. are quieter than crowbars and circular saws.
C. are unlikely to complicate an already dangerous situation.
D. can quickly and efficiently repair structural damage to vehicles involved in collisions.
E. have greater leverage than crowbars and circular saws.
The passage intends to establish a cause and effect relation as follows:
Cause: “hydraulic tools do not create spark or cause structural damage”
Effect: “therefore they are less frightening to crash victims and ___________________.”
The correct answer should be an effect of the cause (do not create spark / do not cause structural damage) mentioned above.
A. This option is not an effect of “hydraulic tools do not create spark or cause structural damage.”
B. This option is a general characteristic / advantage of the hydraulic system. It is not an effect of “hydraulic tools do not create spark or cause structural damage.”
C. CORRECT. This option is an effect of “hydraulic tools do not create spark or cause structural damage.” If further structural damage is not caused, then it is unlikely to have complications to an already dangerous situation.
D. Repair of the structural damage is out of context. The passage deals with rescue of people, not repair of structure.
E. Same reasoning as B.
Answer: C