The reactions which cannot be applied to prepare an alkene by elimination, are

Choose the correct answer from the options given below:

Given below are two statements:

Statement I : Ozonolysis followed by treatment with $\mathrm{Zn}, \mathrm{H}_2 \mathrm{O}$ of cis-2-butene gives ethanal.

Statement II : The product obtained by ozonolysis followed by treatment with $\mathrm{Zn}, \mathrm{H}_2 \mathrm{O}$ of 3, 6-dimethyloct-4-ene has no chiral carbon atom.

In the light of the above statements, choose the correct answer from the options given below

Predict the major product of the following reaction sequence:-

$$ \text { Which compound would give 3-methyl-6-oxoheptanal upon ozonolysis? } $$