A. Account a = (SELECT ID, Name, Type, (select contat,firstName, Contact,LastName from Account, Contacts) from Account where name; Ozone Electronic' Limit 1 );

B. List 1Contacts = new list ( );
for(Contact c ; 1Select firstname, lastname Account, Name Account,ID Account, Type from Contact where Account: Name=' electronics')) ( iContacts.add(c);)

C. Account a = (SELECT ID, Name, Type from Account where name= Ozone Electronics;)
list 1contacts = (SELECT firstname, lastname from Contacts where accountid=: a -ID0;

D. List 1Accounts = (Select ID, Name, Type from Account Join (Select ID, firstname, lastname form Contact where contact account , name 'ozone electronics));