If right atrial pressure is high how do we measure JVP?

A. let the person lie flat so that its can be very visible

B. with the bed inclined at 45 use the hepatojagular reflex to elicit it

C. let the person Sit up and still check for. highest Point of pulsation if too high

D. Look for the highest point of visible pulsation in the internal jugular vein with the bed at 45