Refer to the Figure, Which Shows Four Vectors $\overrightarrow { \mathrm { M } }$

Refer to the figure, which shows four vectors
$\overrightarrow { \mathrm { M } }$ , $\vec { N }$ $\overrightarrow { \mathrm { s } }$ , and $\vec { T }$ .
(a) Vector $\overrightarrow { \mathrm { s } }$ as expressed in terms of vectors $\overrightarrow { \mathbf { M } }$ and $\vec { N }$ is given by
A) $\overrightarrow { \mathrm { M } }$ + $\overrightarrow { \mathrm { N } }$ .
B) $\overrightarrow { \mathrm { M } }$ - $\overrightarrow { \mathrm { N } }$ .
C) $\vec { N }$ - $\overrightarrow { \mathbf { M } }$ .
(b) Vector $\overrightarrow { \mathrm { T } }$ as expressed in terms of vectors $\overrightarrow { \mathrm { M } }$ and $\overrightarrow { \mathrm { N } }$ and is given by
A) $\vec { N }$ + $\overrightarrow { \mathrm { M } }$
B) $\overrightarrow { \mathrm { M } }$ - $\vec { N }$
C) $\vec { N }$ - $\vec { M }$