(2a+2b+2c)^(2)=...

`(2a+2b+2c)^(2)=`

A

`4a^(2)+4b^(2)+4c^(2)+4ab+4bc+4ca`

B

`4a^(2)+4b^(2)+4c^(2)+8ab+8bc+8ca`

C

`4a^(2)+4b^(2)+4c^(2)-4ab+4bc-4ca`

D

`4a^(2)+4b^(2)+4c^(2)-8ab+8bc-8ca`

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