Which of the following is a valid SQL statement for adding a new row of data to a SQL database table?

A. INSERT INTO users (firstname, lastname) values (‘George’, ‘Washington’);
B. INSERT (‘George’, ‘Washington’) INTO users (firstname, lastname);
C. ALTER TABLE users SET firstname = ‘George’, lastname = ‘Washington’;
D. UPDATE users SET firstname = ‘George’, lastname = ‘Washington’;

Answer: A