The z component of the resultant of $2\hat{\mathrm{i}}+11\widehat{\mathrm{j} }+13 \hat{\mathrm{k}} \mathrm{and} 5\hat{\mathrm{j}}+ 3\hat{\mathrm{k}}$  is

• A

  16

• B

  7

• C

  10

• D

  17