Final answer:
The total amount of fruit juice is 100 milliliters, as it matches the total amount of juice given, assuming no further context or information is provided suggesting it is a mixture.
Step-by-step explanation:
To solve the question of how many milliliters would be fruit juice for 100 milliliters of juice, we assume 100 milliliters is the total amount of juice. Because the question does not provide additional information regarding the concentration or mixture of the juice, it's safe to assume that all 100 milliliters of the juice is fruit juice. Therefore, the answer is simply 100 milliliters of fruit juice.
No calculation or conversion is necessary because we are not changing units or dealing with a diluted mixture where only a percentage is fruit juice. Thus, the correct answer is not among the options provided (A) 2.5 milliliters, (B) 25 milliliters, (C) 75 milliliters, or (D) 250 milliliters. It's possible that the question has been misunderstood or there is missing context.