4 votes 4 votes closed with the note: made easy book wrong question , right one is : https://gateoverflow.in/828/gate2002-1-23 a - has not been used for the longest time in the past b- will not be used for the longest time in the future. c-has been used least number of times d-has been used most number of times. hem chandra joshi asked Jun 27, 2017 • retagged Mar 15, 2019 by Naveen Kumar 3 hem chandra joshi 1.5k views comment Share Follow See all 0 reply Please log in or register to add a comment.