What will be the projection of vector $A=\hat{i}+\hat{j}+\hat{k}$ on vector $\vec{B}=\hat{i}+\hat{j}$.

  • [JEE MAIN 2021]
  • A

    $\sqrt{2}(\hat{i}+\hat{j})$

  • B

    $(\hat{i}+\hat{j})$

  • C

    $\sqrt{2}(\hat{i}+\hat{j}+\hat{k})$

  • D

    $2(\hat{i}+\hat{j}+\hat{k})$

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