What Anatomical Difference Makes Urinary Tract Infections More Common in Females

What anatomical difference makes urinary tract infections more common in females than in males?

A) In males the urethra is made up of three regions, whereas in females it is made of only one.
B) In females the urethra is attached to the anterior vaginal wall by connective tissue.
C) In females the urethra is shorter than in males.
D) In males the urethra is shared by the both the reproductive and the urinary systems, whereas in females it is part of the urinary system only.