Find the dot product of $\overrightarrow{\mathrm{A}}=\hat{\mathrm{i}}+\hat{\mathrm{j}}$ and $\overrightarrow{\mathrm{B}}=2\hat{\mathrm{i}}-3\hat{\mathrm{j}}+4\hat{\mathrm{k}}$ 

• A

  $-1$

• B

  $1$

• C

  $5$

• D

  zero