There are two transactions TA and TB. Which following statement is CORRECT after TIme 4? Time Operations TA TB Dell Computer Apple Computer 1 Begin Transaction TA Begin 20 15 2 Begin Transaction TB Begin 20 15 3 TA Shared Lock Dell Computer SL (Dell Computer) 20 15 4 TA Exclusive Lock Apple Computer XL(Apple Computer) 20 15 TB can put a share lock on Dell Computer record and a shared lock on Apple Computer record. TB can put a share lock on Dell Computer record and an exclusive lock on Apple Computer record. TB can put an exclusive lock on Dell Computer record and a shared lock on Apple Computer record. TB can put an exclusive lock on Dell Computer record and an exclusive lock on Apple Computer record. None of above is correct