According to above given question , we can say that
Potato comes under the class vegetable.
But animal is different from them.
It is clear that option ( A ) represents the best relationship between animals, vegetables and potatoes . As shown in given venn - diagram .

On the basis of above given question , we know that
English and Hindi are two different languages.
From above it is clear that option ( C ) represents the best relationship between languages, English and Hindi.
. As shown in given venn - diagram .

According to above given question , we can say that
Boys are different from girls.
But both come under the class children.
From above it is clear that option ( C ) represents the best relationship between Boys, Girls and Children . As shown in given venn - diagram .

On the basis of above given question , we can say that
Brinjal is a Vegetable but Meat is different from the both.
As shown in figure , option ( C ) represents the best relationship between Brinjal, Meat and Vegetables .

On the basis of above given question , we know that
All Lawyers are educated.
All Teachers are educated.
Some Lawyers may be teachers and vice-versa.
It is clear that option ( C ) represents the best relationship between Lawyers, Teachers and Educated . As shown in given venn - diagram .

As per the above given question , we know that
Cow and goat are different from each other and both are animals.
From above it is clear that option ( A ) represents the best relationship between Cows, Animals and Goats . As shown in given venn - diagram .

According to above question , we can say that
Some illiterates may be poor people and vice-versa.
Some illiterates may be unemployed and vice-versa.
Some poor people may be unemployed and vice-versa.
Some illiterate poor people may be unemployed.
Some unemployed poor people may be illiterates.
Some illiterate unemployed may be poor people.
From above it is clear that option ( B ) represents the best relationship between illiterates, poor people and unemployed. As shown in given venn - diagram .

As we know that ,
Cement is different from Bricks, but both are building materials.
From above it is clear that option ( D ) represents the best relationship between Cement, Bricks and Building materials . As shown in given venn - diagram .

According to above given question , we can say that
Days constitute Month and in turn 12 months constitute a Year.
It is clear that option ( B ) represents the best relationship between Days, Year and Months. As shown in given venn - diagram .

As we know that ,
Crow is different from Eagle.
But, both comes under the class bird.
From above it is clear that option ( B ) represents the best relationship between Days, Year and Months. As shown in given venn - diagram .