Although Attempts Are Being Made to Standardize the Flavones in Ginkgo,the

Although attempts are being made to standardize the flavones in ginkgo,the nurse is aware this product can still be particularly dangerous for which clients?

A) Those using a generic brand of the herbal product
B) Those who are taking anticoagulant drugs
C) Clients who have never taken the herb
D) Clients who are of African American ethnicity