1) An M:N relationship can be decomposed into :

a) two 1:1 relationships

b) a 1:1 reltionship and a 1:M relationship

c) two 1:N relationships

d)noen of the above

2) if N number of tables are joined then they should have

a)maximum of N-1 join clauses

b)minimum of 1 join clause

c)maximum of N join clause

d)minimum of N-1 join clauses

PLEASE ANSWER ONLY IF YOU ARE 100% SURE AND GIVE NECESSARY EXPLANATION