(C). embark (it also means to begin)
withdraw(निकालना): remove or take away (something) from a particular place or position.
depart ( रवाना होना): leave, typically in order to start a journey.
embark (चढ़ना, शुरू करना): go on board a ship, aircraft, or another vehicle.
abscond (फ़रार होना): leave hurriedly and secretly, typically to avoid detection of or arrest for an unlawful act such as theft.
Hence, the most appropriate word is embark (to begin). So option c is correct.