IBM Exam Questions

What is the result of the following query?

Given the following statements:
CREATE TABLE tab1 (col1 INT);
CREATE TABLE tab2 (col1 INT);
CREATE TRIGGER trig1 AFTER UPDATE ON tab1
REFERENCING NEW AS new1
FOR EACH ROW MODE DB2SQL
INSERT INTO tab2 VALUES(new1.col1);

INSERT INTO tab1 VALUES(2),(3);
What is the result of the following query?
SELECT count(*) FROM tab2;

A.
3

B.
2

C.
1

D.
0