Which isolation level will allow application APP_B to retrieve all rows from table TAB1 immediately, rather than have to wait until application APP_A has finished making updates?

Application APP_A is performing updates to table TAB1 using the read stability (RS) isolation level. Which isolation level will allow application APP_B to retrieve all rows from table TAB1 immediately, rather than have to wait until application APP_A has finished making updates?
A. Read Stability (RS)
B. Cursor Stability (CS)
C. Repeatable Read (RR)
D. Uncommitted Read (UR)

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