In terms of communication ethics, if you fail to mention to your roommate that you accidentally scraped the bumper of her car when you pulled your car into the garage, you have engaged in .

secrecy

Explanation:

In term of Communication ethics , it is known as secrecy which meant to hide information of any thing from someone.  Hide or concealed information of keep it private is known as act of keeping secret. It is also knows as confidential .

The  ranji trophy   was launched as india's national championship following a meeting of the  board of control for cricket in india   (bcci) in july 1934 and the competition began in the 1934-35 season. the trophy was donated by the maharajah of patiala but named after  ks ranjitsinhji   ("ranji"),