A proton collides with a neutron (mass almost identical to the proton) to form a deutron. What will be the velocity of the deutron if it is formed from a proton moving with velocity \( 7.0 × 10^{6} \frac{m}{s} \) to the left and a neutron moving with velocity \( 4.0 × 10^{6} \frac{m}{s} \) to the right?(proton mass =1.67×10^-27 kg)

A \( 1.5 × 10^{6} \frac{m}{s} \) towards left

B \( 15 × 10^{6} \frac{m}{s} \) upwards

C \( - 1.5 × 10^{6} \frac{m}{s} \) towards left