As we know that ,
College students are different from school students.
From above it is clear that option ( B ) represents the best relationship between student, college and school. As shown in given venn - diagram .

As we know that ,
Pea is different from kidney bean.
But both are Leguminous seeds.
From above it is clear that option ( B ) represents the best relationship between Legumes Seeds, Peas and Kidney Beans. As shown in given venn - diagram .

As we know that ,
Star is different from Moon and Mars (Planet).
Satellite (Moon) is different from Planet.
It is clear that option ( D ) represents the best relationship between Star, Moon and Mars. As shown in given venn - diagram .

As we know that ,
Thief comes under the class criminal.
But police is different from the both thief and criminal.
From above it is clear that option ( A ) represents the best relationship between Police, Thief and Criminal. As shown in given venn - diagram .

On the basis of above given question , we know that
Novels are different from Dictionaries.
But both can be included in the class books.
It is clear that option ( D ) represents the best relationship between Books, Novels and Dictionaries. As shown in given venn - diagram .

As we know that ,
Oxygen is different from Carbon dioxide.
But both gases are found in atmosphere.
From above it is clear that option ( B ) represents the best relationship between Atmosphere, Oxygen and Carbon dioxide. As shown in given venn - diagram .

On the basis of above given question , we know that
Some students may be scholars and vice-versa.
Some teachers may be scholars and vice-versa.
Some students may be teachers and vice-versa.
Some students who are scholars may be teachers.
Hence , option ( A ) represents the best relationship between Teachers, Scholars and Students. As shown in given venn - diagram .

As we know that ,
Land animals are different from sea animals, but both are included in the class Animals.
From above it is clear that option ( B ) represents the best relationship between Animals, land animals and sea animals. As shown in given venn - diagram .

As we know that ,
Vegetables and Potatoes are Eatables items .
Eatables will be a big circle and Potatoes will be a small circle .
Therefore ,option ( A ) represents the best relationship between Vegetables, Potatoes and Eatables. As shown in given venn - diagram .

As per the given above question , we know that
Catholics and Pope belong to Christians, but Pope belongs to both Catholics and Christians .
It is clear that option ( B ) represents the best relationship between Christians, Catholics and Pope.