Task: Question Answering
Input (English): Problem: in a class, there are 18 boys who are over 160 cm tall. if these constitute 3 - fourths of the boys and the total number of boys is two - thirds of the total number of students in the class, what is the number of girls in the class ?
Options: a. 11, b. 12, c. 28, d. 27, e. 19
Output (English): b