Study the given statements.
Statement-I :
Statement-II : a2 + b2 + c2 – ab – bc – ca
Which of the following options holds?
A Both Statement-I and Statement-II are true.
B Statement-I is true but Statement-II is false.
C Statement-I is false but Statement-II is true.
D Both Statement-I and Statement-II are false.
How to do this. Solution given is confusing