A DNS server is experiencing problems resolving hosts. Your troubleshooting efforts identify the following SOA record as the cause of the problem:

@ soa in host1.abc.com. root.abc.com. (
1002 ; Version number
43200 ; Refresh after 12 hours
3600 ; Retry after 1 hour
604800 ; Expire after 1 week
3600) ; Minimum TTL of 1 hr

What is causing the error?

A.
The () pair should be {}.

B.
The soa must be in uppercase.

C.
A serial number of 1002 is too small.

D.
The final ")" must be on a line by itself.

E.
The soa and in fields are in the wrong order.