Respuesta :
Answer:
The first sentence
Explanation:
He alerted his co-worker quietly without being noticed. In all the other sentences, the people/person made no attempt to hide their action.
Answer:
The discreet man quietly alerted his coworker that he was wearing his shirt inside out.
Explanation:
dis·creet
/diˈskrēt/
adjective
careful and circumspect in one's speech or actions, especially in order to avoid causing offense or to gain an advantage.