The correct option is
C A-Alice
To find who collected the maximum number of chocolates, start from the top by keeping the bar horizontal, come straight down untill we hit the first spot at a height of 7.
So, the greatest number of chocolates collected is 7.
Draw a line from the point to x-axis which meets at C.
Hence, Charlie has the maximum number of chocolates that is 7.
To find who collected the least number of chocolates, start from the x-axis and bring it upward parallel to x-axis untill it hits the first and lowest dot which is at a height of 2.
So, the least number of chocolates collected is 2.
Draw a line from the point to x-axis which meets at A.
Hence, Alice has the least number of chocolates that is 2.