Refer to animation: kinetic and potential energy. which of the factors accounts for the higher potential energy of c-c and c-h bonds compared to c-o and h-o bonds?
a) the c-c and c-h bonds are strong, thus requiring a lot of energy to hold together.
b) the co and h-o bonds are weak, thus requiring less energy to hold together.
c) the c-c and c-h bonds are weak, thus requiring a lot of energy to hold together.
d) the co and wo bonds are strong, thus requiring a lot of energy to hold together.

Explanation:

The electronegativity difference in C-C and C-H atoms is quite low. This means smaller the electron cloud. This further means larger bond length that is electron's are further from the nucleus.  hence,  higher potential energy of C-C and C-H bonds.

On the contrary, C-O and H-O have large difference in electronegativity( O is high electronegative element) . This means smaller bond length. Electron's near the nucleus. Thus, lower potential energy of bonds.

if you're asking what comes out, it's steam.

the answer to this question is 3.