If a + b + c = m and 1 + 1 + 1 = 0, then average of a2,b2 and c2 is abc

If a + b + c = m and 1 + 1 + 1 = 0, then average of a2,b2 and c2 is ab

1.	If a + b + c = m and 1 + 1 + 1 = 0, then average of a2,b2 and c2 is abc
A.	m
B.	<sup>2</sup>
C.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>m<sup>2</sup></center></td></tr><tr><td style="text-align: center;">3</td></tr></table>
D.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>m<sup>2</sup></center></td></tr><tr><td style="text-align: center;">9</td></tr></table>
E.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>m<sup>2</sup></center></td></tr><tr><td style="text-align: center;">27</td></tr></table>
Answer» C. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>m<sup>2</sup></center></td></tr><tr><td style="text-align: center;">3</td></tr></table>