Which statements are true regarding ICMP packets?1. ICMP guarantees datagram delivery.2. ICMP can provide hosts with information about network problems.3. ICMP is encapsulated within IP datagrams.4. ICMP is encapsulated within UDP datagrams.

• A. 1 and 4
• B. 1 only
• C. All of these
• D. 2 and 3

Answer: (D)