Five subjects S1, S2, S3, S4 and S5 (not necessarily in the same order) are to be taught from Monday to Friday. One subject will be taught on one day. Only S5 is taught before S1. S2 is taught before S4. S2 will not be taught on Wednesday.
Which of the following pair of subjects is taught after S3?1
S2, S4
2
S3, S4
3
S4, S5
4
S1, S2