Answer is C)
A & B are clearly wrong as we are doing Reverse lookup.
C is most closest answer to process given in RFC 1033. We need to get NS for in-addr.arpa before doing query to 126.96.36.199.in-addr.arpa
D is not correct, it is not close to process.
Relevant stuff From https://tools.ietf.org/html/rfc1033 ==>
The structure of names in the domain system is set up in a
hierarchical way such that the address of a name can be found by
tracing down the domain tree contacting a server for each label of
the name. Because of this 'indexing' based on name, there is no easy
way to translate a host address back into its host name.
In order to do the reverse translation easily, a domain was created
that uses hosts' addresses as part of a name that then points to the
data for that host. In this way, there is now an 'index' to hosts'
RRs based on their address. This address mapping domain is called
IN-ADDR.ARPA. Within that domain are subdomains for each network,
based on network number. Also, for consistency and natural
groupings, the 4 octets of a host number are reversed.
For example, the ARPANET is net 10. That means there is a domain
called 10.IN-ADDR.ARPA. Within this domain there is a PTR RR at
188.8.131.52.IN-ADDR that points to the RRs for the host SRI-NIC.ARPA
(who's address is 10.0.0.51). Since the NIC is also on the MILNET
(Net 26, address 184.108.40.206), there is also a PTR RR at 220.127.116.11.IN-
ADDR.ARPA that points to the same RR's for SRI-NIC.ARPA. The format
of these special pointers is defined below along with the examples
for the NIC.
The PTR record is used to let special names point to some other
location in the domain tree. They are mainly used in the IN-
ADDR.ARPA records for translation of addresses to names. PTR's
should use official names and not aliases.
For example, host SRI-NIC.ARPA with addresses 10.0.0.51 and 18.104.22.168
would have the following records in the respective zone files for net
10 and net 26:
22.214.171.124.IN-ADDR.ARPA. PTR SRI-NIC.ARPA.
126.96.36.199.IN-ADDR.ARPA. PTR SRI-NIC.ARPA.