What is the benefit of using a stateful firewall in a network?

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What is the benefit of using a stateful firewall in a network?

It can prevent application layer attacks because it examines the actual contents of the HTTP connection.
It analyzes traffic at OSI Layer 4 and Layer 5.
It filters IP traffic between bridged interfaces at OSI layer 7.
It strengthens packet filtering by providing more stringent control over security.

Explanation: There are several benefits to using a stateful firewall in a network:

Stateful firewalls are often used as a primary means of defense by filtering unwanted, unnecessary, or undesirable traffic.
Stateful firewalls strengthen packet filtering by providing more stringent control over security.
Stateful firewalls improve performance over packet filters or proxy servers.
Stateful firewalls defend against spoofing and DoS attacks by determining whether packets belong to an existing connection or are from an unauthorized source.
Stateful firewalls provide more log information than packet-filtering firewalls.