From the two screenshots below, which of the following is occurring?

First one:

1. [10.0.0.253]# nmap -sP
3. Starting Nmap

5. Host 10.0.0.1 appears to be up.

6. MAC Address: 00:09:5B:29:FD:96 (Netgear)

7 Host 10.0.0.2 appears to be up.

8 MAC Address: 00:0F:B5:96:38:5D (Netgear)

9 Host 10.0.0.4 appears to be up.

10 Host 10.0.0.5 appears to be up.

11 MAC Address: 00:14:2A:B1:1E:2E (Elitegroup Computer System Co.)

12 Nmap finished: 256 IP addresses (4 hosts up) scanned in 5.399 seconds

Second one:

1 [10.0.0.252]# nmap -sO 10.0.0.2

2

3 Starting Nmap 4.01 at 2006-07-14 12:56 BST

4 Interesting protocols on:

5 (The 251 protocols scanned but not shown below are

6 in state: closed)

7 PROTOCOL STATE SERVICE

8 1 open icmp

9 2 open|filtered igmp

10 6 open tcp

11 17 open udp

12 255 open|filtered unknown

13

14 Nmap finished: 1 IP address (1 host up) scanned in

15 1.259 seconds

A. 10.0.0.253 is performing an IP scan against 10.0.0.0/24, 10.0.0.252 is performing a port scan against 10.0.0.2.

B. 10.0.0.253 is performing an IP scan against 10.0.0.2, 10.0.0.252 is performing a port scan against 10.0.0.2.

C. 10.0.0.2 is performing an

IP scan against 10.0.0.0/24, 10.0.0.252 is performing a port scan against 10.0.0.2.

D. 10.0.0.252 is performing an IP scan against 10.0.0.2, 10.0.0.252 is performing a port scan against 10.0.0.2.