For epiglottitis, which statement is false.. Fluoroscopy is better than plain lateral neck radiograph

For epiglottitis, which statement is false:
A- Usually caused by bacterial infection.
B- Accompanied by high fever and drooling. (Haemophilus influenzae).
C- Shows thickened aryepiglottic fold.
D- Subglottic narrowing is more common than croup.  False  (Supraglottitis).
E- Fluoroscopy is better than plain lateral neck radiograph.