Question

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many people dream of the day when robots can do their chores for them. actually, robots can do a variety of tasks, and companies say that they are improving them all the time. helen grunier is president of irobot, a company that makes household robots. according to grunier, the age of automatic appliances is here. devices like the roomba, a small robotic vacuum cleaner, are just the start. she suggests that in the future, robots will be able to do a number of tasks that humans do not enjoy.
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companies are making ______ in robot development.
a exceptions
b commitments
c guarantees
d advancements

Explanation:

The sentence is about companies making progress in robot development. "Advancements" (option D) means progress or improvements, which fits the context of robot development. "Exceptions" (A) refers to something not following a rule, "commitments" (B) are promises, and "guarantees" (C) are assurances, none of which fit the context of development progress.

Answer:

D. advancements