As tabelas a seguir compõem um banco de dados simplificad...

A SELECT nomeCliente FROM Cliente, ContaCliente, Conta WHERE idCliente=idCliente AND idConta=idConta AND ultimoSaldo > 2000; B SELECT nomeCliente FROM TABLES Cliente c, ContaCliente cc, Conta cs WHERE c.idCliente=cc.idCliente AND cc.idConta=cs.idConta AND cs.ultimoSaldo > 2000; C SELECT nomeCliente FROM Cliente c, ContaCliente cc, Conta cs WHERE c.idCliente=cc.idCliente AND cc.idConta=cs.idConta AND cs.ultimoSaldo > 2000; D SELECT nomeCliente FROM Cliente c, ContaCliente cc, Conta cs INNER JOIN c.idCliente=cc.idCliente AND cc.idConta=cs.idConta AND cs.ultimoSaldo > 2000; E SELECT nomeCliente FROM Cliente c INNER JOIN ContaCliente cc INNER JOIN Conta cs AS c.idCliente=cc.idCliente AND cc.idConta=cs.idConta AND cs.ultimoSaldo > 2000;