In Cisco NX-OS, what is the most significant difference between SNMP types and SNMP informs?

In Cisco NX-OS, what is the most significant difference between SNMP types and SNMP informs?

A.
Informs are connectionless.

B.
Traps are connection oriented.

C.
Informs are not SNMP notifications.

D.
Informs request an acknowledging receipt.