Which of the diagrams given below correctly represents the students who learn law and music, music and dance, law and dance and law, music and dance?

According to above given question ,we can say that
Violinists are Instrumentalists and in turn, Instrumentalists are Musicians.
From above it is clear that option ( A ) gives the best relationship between Musicians, Instrumentalists and Violinists .

As we know that ,
Crows belong to class Aves. Cow is a mammal.
From above it is clear that option ( B ) represents the best relationship between Mammals, Cows and Crows .

According to above given question , we can say that
Some guides may be philosophers and vice versa.
Some friends may be guides and vice versa.
Some friends may be philosophers and vice versa.
Some philosopher guides may be friends.
From above it is clear that option ( C ) gives the best relationship between Friend, Guide and Philosopher .

According to above given question , we know that
Doctors consists of Specialist Doctors and Patients but Specialist Doctors and Patients are of two different nature.
Hence , Option (B) is correct.

According to question , we have
Delhi and Srilanka both are in Asia.
From above it is clear that option B represents the best relationship among Delhi, Sri Lanka and Asia .As shown in given figure .

From above the given question , it is clear that
Popular English Teachers form sub-set of English Teachers. Also, there may be some English Teachers who are not popular.
Hence , Option B represents the required answer .

According to above given question , we can say that
Some hygroscopic substances may be crystalline and vice-versa.
Some hygroscopic substances may be non-electrolytic and vice-versa.
Some crystalline substances may be non-electrolytic and vice-versa.
From above it is clear that option ( D ) gives the best relationship between hygroscopic, crystalline and non-electrolytic substance.

As per the given above question , we can say that
Here , U = Unemployed;
T = Teacher
Educated people may be employed or unemployed.
From above it is clear that option ( B ) represents the best relationship between educated people, unemployed and teachers .

As per the given above question , we can say that
Some athletes may be football players and vice-versa.
Some athletes may be cricket players and vice-versa.
Some athletes may be both cricket players and football players.
Some cricket players may be football players and vice-versa.
Therefore , option ( B ) represents the best relationship between athletes, football players and cricket players.

As per the above given question , we can say that
Some teachers may be graduates and vice-versa. All teachers and all graduates are human beings.
From above it is clear that option ( A ) gives the best relationship betweenHuman beings, Teachers and Graduates .As shown in given venn - diagram .