A neutron having mass of \[1.67\times {{10}^{-27}}kg\] and moving at \[{{10}^{8}}m/s\] collides with a deutron at rest and sticks to it. If the mass of the deutron is\[3.34\times {{10}^{-27}}kg\]then the speed of the combination is [CBSE PMT 2000]

• A.             \[2.56\times {{10}^{3}}m/s\]
• B.               \[2.98\times {{10}^{5}}m/s\]
• C.             \[3.33\times {{10}^{7}}m/s\]
• D.               \[5.01\times {{10}^{9}}m/s\]