DBMS द्वारा तैनात तकनीक के अनुसार निम्नलिखित में से कौन-सा सही है?
(A) Pointers are used to maintain transactional integrity and consistency
(B) Cursors are used to maintain transactional integrity and consistency
(C) Locks are used to maintain transactional integrity and consistency
(D) More than one of the above
(E) None of the above