When Measuring the Gestational Sac, All of the Following Statements

Multiple Choice

When measuring the gestational sac, all of the following statements are true except:

A) a distended urinary bladder can compress the sac from round to ovoid.
B) if the sac is round, one diameter should be measured.
C) if the sac is ovoid, measurements cannot be obtained.
D) if the sac is ovoid, the anteroposterior and width are measured to obtain mean diameter.