Which Statement Accurately Describes the Interactions Between the Molecules Thrombin

Multiple Choice

Which statement accurately describes the interactions between the molecules thrombin, antithrombin, and heparan sulfate?

A) In the absence of heparan sulfate, antithrombin binds tightly to thrombin, inhibiting blood coagulation.
B) In the absence of heparan sulfate, antithrombin cannot bind to thrombin, inhibiting blood coagulation.
C) In the presence of heparan sulfate, antithrombin binds tightly to thrombin, inhibiting blood coagulation.
D) In the presence of heparan sulfate, antithrombin cannot bind to thrombin, enabling blood coagulation.
E) In the presence of heparan sulfate, antithrombin binds tightly to thrombin, enabling blood coagulation.