Which of the Following Statements Is True

Multiple Choice

Which of the following statements is true?

A) Viagra acts to increase blood flow to the penis during sexual arousal.
B) BPH, a benign prostatic hyperplasia, is suspected when men have a more frequent urge to urinate and produce a weaker stream of urine.
C) Prostate enlargement is often due to the presence of a normal hormone (5-alpha reductase) present at an inappropriate time in development.
D) Enlargement of the prostate puts pressure on the vas urethra, leading to difficulty urinating.
E) All of the answer choices are true.