As a firm adds more and more labor, producing more,

$($Hint: $"$An increasing rate" would mean increasing percentage changes, like $2$ percent to $4$ percent to $5$ percent; "a decreasing rate" would mean decreasing percentage changes, like $6$ percent to $3$ percent to $1$ percent.$)$

Group of answer choices

the firm's output rises, but at a decreasing rate

the firm's output falls, but at a decreasing rate

the firm's output falls at an increasing rate

the firm's output falls, but at a decreasing rate