Answer:A palter
Explanation: what is a palter?
A palter is a statement that someone makes by omitting crucial information which may confuse the receiver of the message.
This is done when someone can not be straight or be factual because they are afraid of the consequences or because they want to mislead the person.
He is misleading the boss by saying he hasn't seen him and he is plainly lying by finding something that may make him not to look guilt .
This may lead to serious consequences because now he lied to the boss even though he knows the truth .