13. In a class, each student likes least one of the five subjects name. ly Physics, Chemistry, Maths, English and Biotechnology. 80% of the stu- dents like Physics, 70% of the students like Chemistry, 90% of the students like Maths, 80% of the students like English and 90% like Biotechnology. What is the maximum percentage of the students who like exactly 4 of the 5 subjects? (A) 90% at

(B) 70%

(C) 62%

(D) 50%