<a class='_ac _lb' lightbox='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/2269345.0_rthx89xxhnsm.jpg '><img class='_ac _di img-fluid' style='width:598px; height:inherit; background: inherit;' data-delaysrc='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/2269345.0_rthx89xxhnsm.jpg' src='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/2269345.0_rthx89xxhnsm.jpg' /></a><br/>Which of the followings explains the picture correctly? <br/>1. A gap between tracks.<br/>2. A gap in the track.<br/>2. A gap on the track.