The one giving maximum number of isomeric alkenes on dehydrohalogenation reaction is (excluding rearrangement)

An indicator 'X' is used for studying the effect of variation in concentration of iodide on the rate of reaction of iodide ion with $$\mathrm{H_2O_2}$$ at room temp. The indicator 'X' forms blue coloured complex with compound 'A' present in the solution. The indicator 'X' and compound 'A' respectively are :

Find out the major product for the following reaction.

Find out the major products from the following reaction sequence.