{{B}}quEstions 23—26{{/B}}

A、wAlking EAsED thE sEriousnEss oF pErsonAl proBlEms.
B、wAlking wAs not usEFul to solving pErsonAl proBlEms.
C、pErsonAl proBlEms CoulD BE solvED ComplEtEly By wAlking.
D、positivE psyChologiCAl ChAngEs CoulD rEsult From wAlking EvEry DAy.