The relation

$$

$($

$$

$)$

$$consists of a set of integers

$-$

$-$

$-$

$$that is

$,$

$$one

$-$

component tuples with an integer

component. Alice's transaction is a query:

$$FROM

$$

;

COMMIT;

Betty's transaction is a sequence of inserts:

INSERT INTO R VALUES

$($

$1$

$0$

$)$

;

INSERT INTO R VALUES

$($

$2$

$0$

$)$

;

INSERT INTO R VALUES

$($

$3$

$0$

$)$

;

COMMIT;

Carol's transaction is a sequence of deletes:

DELETE FROM

$$

$$WHERE

$$

$=$

$3$

$0$

;

DELETE FROM R WHERE

$$

$=$

$2$

$0$

;

COMMIT;

Before any of these transactions execute, the sum of the integers in

$$

$$is

$1$

$0$

$0$

$0$

$,$

$$and none of

these integers are

$1$

$0$

$,$

$2$

$0$

$,$

$$or

$3$

$0$

$.$

$$If Alice's, Betty's, and Carol's transactions run at about the

same time, and each runs under isolation level READ COMMITTED, which sums could be

produced by Alice's transaction? Identify one of those sums from the list below.

$1$

$0$

$0$

$0$

$9$

$9$

$0$

$1$

$0$

$3$

$0$

$1$

$0$

$2$

$0$