The Diagram Below Shows 3 Vectors Which Sum to Zero,all $\overrightarrow { \mathbf { A } } + \overrightarrow { \mathbf { B } } = \overrightarrow { \mathrm { A } } - \overrightarrow { \mathrm { C } }$

The diagram below shows 3 vectors which sum to zero,all of equal length.Which statement below is true?

A) $\overrightarrow { \mathbf { A } } + \overrightarrow { \mathbf { B } } = \overrightarrow { \mathrm { A } } - \overrightarrow { \mathrm { C } }$
B) $\overrightarrow { \mathrm { A } } + \overrightarrow { \mathrm { B } } = \overrightarrow { \mathrm { B } } - \overrightarrow { \mathrm { C } }$
C) $\overrightarrow { \mathbf { A } } - \overrightarrow { \mathbf { B } } = 2 \overrightarrow { \mathbf { A } } - \overrightarrow { \mathbf { C } }$
D) $\overrightarrow { \mathbf { A } } - \overrightarrow { \mathbf { B } } = 2 \overrightarrow { \mathbf { A } } + \overrightarrow { \mathbf { C } }$
E) $2 \overrightarrow { \mathbf { A } } + 2 \overrightarrow { \mathbf { B } } = 2 \overrightarrow { \mathbf { C } }$