In the Section "Investigating Life: the Nerve of Those Clams!",which

In the section "Investigating Life: The Nerve of Those Clams!",which of the following support the hypothesis that Na⁺ transport is affected by saxitoxin?

A) Human cells are resistant to saxitoxin while clam cells are sensitive to saxitoxin.
B) Clam cells altered with the mutated form of the Na⁺ transporter were more resistant to saxitoxin.
C) Removing Na⁺ from the clams makes them resistant to saxitoxin.
D) Human cells are sensitive to saxitoxin while clam cells are resistant to saxitoxin.
E) Na⁺ ion concentration did not affect uptake of saxitoxin by clam cells.