With regard to the transmission of the Human Immuno deficiency Virus,which one of the following statements is not correct ?

• A. The chances of transmission from female to male are twice as likely as from male to female.
• B. The chances of transmission are more if a person suffers from other sexually transmitted infections.
• C. An infected mother can transmit the infection to her baby during pregnancy,at childbirth and by breast feeding.
• D. The risk of contracting infection from transfusion of infected blood is much higher than an exposure to contaminated needle.