Which of the following time stamp ordering protocol(s) allow the following schedules?
$T:W_1(A)\ W_2(A)\ W_3(A)\ R_2(A)\ R_4(A)$
Time stamps: $T_1=5,T_2=10,T_3=15,T_4=20$
- Thomas write rule
- Multiversion time stamp protocol
- Basic Time stamp
- All of these