How many transition states and intermediates will be formed during the course of the following reaction?

Which one of the following statements is $True$?

In the reaction,the major product formed is:

Ionic reactions with organic compounds proceed through:
$(A)$ Homolytic bond cleavage
$(B)$ Heterolytic bond cleavage
$(C)$ Free radical formation
$(D)$ Primary free radical
$(E)$ Secondary free radical
Choose the correct answer from the options given below:

Fill in the blanks:
$(1)$ ......... is the name of $C_6H_5Br_2$.
$(2)$ .......... and ......... are the suffixes for aldehyde and hydroxyl functional groups,respectively.
$(3)$ $A$ is formed by homolytic fission,while $B$ is formed by heterolytic fission of the $C-Cl$ bond in $CH_3-Cl$.
$(4)$ The fission of a covalent bond is of ......... and ......... type.

Among the given compounds,the correct order of enol content is:
$(I)$ Cyclopentanone
$(II)$ $4$-hydroxycyclopent-$2$-en-$1$-one derivative
$(III)$ $\gamma$-butyrolactone derivative