Correct option is B
The antonym of "active" is "passive". While "active" refers to being engaged, energetic, or dynamic, "passive" refers to being inactive or not participating.
Why the other options are incorrect:
(a) Adjust: "Adjust" means to make something more suitable, and it is not the opposite of "active."
(c) Animated: "Animated" refers to being lively or full of energy, which is closer in meaning to "active," not its opposite.
(d) Agile: "Agile" refers to the ability to move quickly and easily, which is still related to being active.