Each of the following questions has a group. Find out which one of the given alternatives will be another member of the group or of that class.
1. 

Apple, Grape, Orange

A. Vegetable
B. Fruits
C. Stems
D. Oats

2. 

Lucknow, Patna, Bhopal, Jaipur

A. Shimla
B. Mysore
C. Pune
D. Indore

3. 

Lock, Shut, Fasten

A. Window
B. Door
C. Iron
D. Block

4. 

Wheat, Barley, Rice

A. Food
B. Agriculture
C. Farm
D. Gram

5. 

Pathology, Cardiology, Radiology, Ophthalmology

A. Biology
B. Hematology
C. Zoology
D. Geology