Attachment of spindle fibers to kinetochores of chromosomes becomes evident in :

1. Anaphase

2. Telophase

3. Prophase

4. Metaphase

Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R) 
Assertion (A): The growth of multicellular organism is due to mitosis 
Reason (R) Mitosis is also called as equational division and it offers genetic stability 
In the light of the above statements choose the correct answer from the options given below: 
1. (A) is correct but (R is not correct 
2. (A) is not correct but R is correct 
3. Both (A) and (R) are correct and (R) is the correct explanation of (A) 
4. Both (A) and (R) are correct and (R) is not the correct explanation of (A)