Select from options: Continue writing the next sentence.

A young man solves a cube puzzle while a man stand on front him. then

Available options: [+] , the young man solve the cube puzzle, then he stands on front an explain.; [+] , a man writes on a paper and shows the young man.; [+] , the young man solves a puzzle, then he stands on front a man.; [+] , the man break a cube and solve it by himself and the person by side.;
Answer:
, a man writes on a paper and shows the young man.