Answer:
Option (C)
Explanation:
Option A.
Ratio of table spoons of sugar to ounces of iced tea = 

From the table attached,
Ratio = 

 = 1 : 4
Option B.
Ratio of sugar to ounces of iced tea = 

 = 1 : 6
Option C.
Ratio of sugar to ounces of iced tea = 

 = 1 : 3
Option D.
Ratio of sugar to ounces of iced tea = 

 = 7 : 24
 ≈ 1 : 3.43
Since, highest ratio means biggest fraction (with least denominator).
From the given options, biggest fraction is 
 .
.
Therefore, highest ratio of amount of sugar in (tsp) to number of ounces of ice tea is in Option (C).