Why Would the Following Code Raise an Error? IF Rec_order

Multiple Choice

Why would the following code raise an error? IF rec_order.state = 'VA' THEN
Lv_tax_num := rec_order.sub * .06;
ELSEIF rec_order.state = 'ME' THEN
Lv_tax_num := rec_order.sub * .05;
ELSE
Lv_tax_num := rec_order.sub * .04;
END IF;

A) Semicolon after THEN is omitted
B) No space between ELSE and IF
C) ELSEIF is not a keyword
D) ":=" should be "="