The correct options are
A 0.20201001000100001...
B 0.202020020002....
C 0.202030030003....
.0.202002000200002....and0.203003000300003...aretwoirrationalnumbers.Betweenany2irrationalnumbersthereexistinfinitelymanyirrationalnumber.0.20201001000100001...,0.202020020002....,0.202030030003...arethreesuchirrationalnumbers.