Which atomic orbitals overlap to form the c-h s bonding molecular orbitals of ethylene, h2c=ch2?

This is what i found on google “when one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis, energy is released, and atp is converted to adenosine diphosphate (adp). likewise, energy is also released when a phosphate is removed from adp to form adenosine monophosphate (amp).” i hope this you .

Ithink the answer is a or d.