Select the correct mirror image of the given figure when the mirror is placed at 'AB' as shown. 
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.
All students are teachers.
All teachers are professors.
Conclusions:
1. All students are professors.
2. All professors are students.
3. No teacher is a professor.
Only conclusion 1 follows
Only conclusion 2 follows
Both conclusions 1 and 3 follow
Only conclusion 3 follows
Select the Venn diagram that best represents the relationship between the following classes.
Singers, Males, Brothers
