A particle moves with a velocity $6\widehat{\mathrm{i}}-4\widehat{\mathrm{j}}+3\widehat{\mathrm{k}} \mathrm{m}/\mathrm{s} \mathrm{under} \mathrm{the} \mathrm{influence} \mathrm{of} \mathrm{a} \mathrm{constant} \mathrm{force} \overrightarrow{\mathrm{F}}=20\widehat{\mathrm{i}}+15\widehat{\mathrm{j}}-5\widehat{\mathrm{k}}\mathrm{N}.$ The instantaneous power applied to the particle is

• A

  35 J/s

• B

  45 J/s

• C

  25 J/s

• D

  195 J/s