Response:
The correct choice is option C
The proportion of green marbles to red marbles is 3: 1
Step-by-step breakdown:
According to the problem statement:
A bag holds 44 marbles, comprising both red and green ones.
⇒Total marbles = 44
If it includes 11 red marbles.
Then;
Green marbles = Total marbles - red marbles.
By substituting the values provided,
Green marbles = 44 - 11 = 33
We are tasked with determining the ratio of green marbles to red marbles.

Consequently, the ratio of green to red marbles is 3: 1