On the Alcatel-Lucent 7750 SR, What Is a Slope Policy

On the Alcatel-Lucent 7750 SR, what is a slope policy used for?

A) Defining the slope of the TCP slow-start mechanism for self generated traffic.
B) Defining the slope of the scheduling rate per forwarding class when using HQoS.
C) Defining the high and low slope values when deploying buffer admission control for UDP traffic in the committed buffer pool.
D) Defining the high and low slope values when deploying buffer admission control for TCP traffic in the shared buffer pool.
E) Defining the high and low slope values when deploying buffer admission control for TCP traffic in the committed buffer pool.