What Would Have Been a Consequence to Executive Authority Had

What would have been a consequence to executive authority had the Bricker Amendment (1954) passed in Congress?

A) Presidential power to use the line-item veto would have ended.
B) The power of the president to use emergency powers in a time of economic crisis would have been eliminated.
C) The president's power to negotiate executive agreements with other nations independently would have been curtailed.
D) Presidential authority to deploy American troops in combat scenarios would have been modified to require immediate congressional approval.