Which condition requires expert medical ? a. first-degree burn on hand b. sprained ankle c. nosebleed d. persistent vomiting

Most likely D because a sprained ankle can be put into a splint which there is most likely someone that can make on. 

10/10 recommend bring pads/tampons with you no matter what. im 16 & i’ve had mine since i was 12 and they’re still it regular, but id suggest using the glow app, many women use it for fertility reasons but i use mine specifically for the period tracking portion and it guesses when your next period will most likely be for the next two months. i dont believe theres any way to delay your period, so id say hope for the best but make sure to bring all of your stuff just incase. have a good cruise!