The correct choice is (d) Planar-Fashionable Circuit Board
To elaborate: The full form of F-PCB is Planar-Fashionable Circuit Board. Sometimes in Holter monitoring, the patient needs typically 6 to 10 wires worn around the body throughout the day. To overcome these problems, a wearable electrocardiogram acquisition system implemented with planar-fashionable circuit board (F-PCB)-based shirt is explained by Yoo.