Question

read the passage. then answer the question that follows.

surgery is a delicate procedure that involves many risk factors. even the most skilled surgeons can make mistakes. robots may be able to help with that. a robot performing surgery may sound intimidating, but most robots are still supervised or controlled by a human doctor. for example, one type of robot moves just one inch for every three inches that the doctor controlling it moves. this means that the surgery can be more precise because the robot is making smaller incisions than the doctor can make. however, training doctors to use the robots can be expensive and can take a lot of time to set up before the surgery. furthermore, robots only work best for minimally invasive procedures rather than major surgeries.

which of these provides the best concluding sentence for the passage?

a) robots need too much supervision to be useful in the operating room.

b) surgeries performed by robots are less dangerous than surgeries performed by doctors.

c) because surgeries involve many risk factors, robots should perform surgeries in the same ways doctors do.

d) despite drawbacks, situations such as performing microsurgery on damaged nerves are ideal for using robots during surgery

Explanation:

To find the best concluding sentence, we analyze each option:

• Option a: The passage says robots are supervised by doctors and can be precise, so saying they need too much supervision to be useful contradicts the positive aspect (precision) and is incorrect.
• Option b: The passage notes robots have drawbacks (expensive training, limited to minimally invasive) and doesn't claim they are less dangerous overall than doctor - performed surgeries, so this is not supported.
• Option c: The passage states robots work best for minimally invasive, not the same as doctors. Also, the drawbacks suggest they aren't suitable for all surgeries like doctors, so this is wrong.
• Option d: The passage mentions robots' precision (a benefit) and their drawbacks (expensive training, limited to minimally invasive). This option acknowledges the drawbacks and points out a situation (microsurgery on damaged nerves) where they are ideal, which aligns with the passage's content about their precision and limited use case.

Answer:

d. Despite drawbacks, situations such as performing microsurgery on damaged nerves are ideal for using robots during surgery