The relation between mv and av is __________

• A. (m_v= frac{a_v}{e_0} )
• B. (m_v= frac{a_v}{1+ } )
• C. (m_v= frac{a_v}{1+e_0} )
• D. (m_v= frac{1}{e_0} frac{a_v}{1+e_0} )