The publication of defamatory matter shall not be deemed to have been made in good faith by a person, within the meaning of section 318 if it is made to appear—
(a) that the matter was untrue, and that he or she did not believe it to be true;
(b) that the matter was untrue, and that he or she published it without having taken reasonable care to ascertain whether it was true or false;
(c) that in publishing the matter, he or she acted with intent to injure the person defamed in a substantially greater degree than was reasonably necessary for the interest of the public or for the protection of the private right or interest in respect of which he or she claims to be privileged.