What is true regarding PAgP and LACP?

A.
PAgP is Cisco proprietary and LACP is IEEE standard.

B.
PAgP is Cisco proprietary and LACP is ITU standard

C.
PAgP is ITU standard and LACP is Cisco proprietary.

D.
PAgP is IEEE standard and LACP is Cisco proprietary.

E.
None of the above.