 Of all the characters, who is seen as an antagonist in the article?
SILENCE IS—DEADLY By Bertrand L. Shurtleff Radio is an absolute necessity in modern organization—and particularly in modern naval organization. "But this storm, sir!" Nelson avoided Curtis' friendly eyes and slipped out from under his arm. Nelson's estimate, I'm checking back," he declared, frowning at the two papers and hastily rechecking his own figures. With all these rocks and islets—" "Radio?" repeated the little Czech, thrusting his face between the other two, in his independent fashion that ignored ship's discipline. Then he hastened to the radio room, with Nelson at his heels, and the Czech trotting along behind.
 Androka, because his actions severely inconvenienced the crew of the ship.
 Androka's assistant because he turned off the radio.  Commander Curtis because he rarely complied with the other crew members.  The radio man on the ship because he could not complete Commander Curtis's orders.  Androka, because his actions severely inconvenienced the crew of the ship.