(a)    Above reaction can produce how many alkenes.
(b)    Out of all the alkenes how many will show geometrical isomerism
(c)    Out of all the alkenes how many will show optical isomerism.
(d)    How many organic products are obtained when major product of above reaction is treated with N₂H₄ / H₂O₂.
Write answer of part (a), (b), (c) & (d) in the order V X Y Z and present the four digit number as answer. For example : If all these answer are 9 then write 9999.