Temper tantrums that often occur in children between 18 months and three years old are most likely caused by a. children being stubborn. b. frustration over not being able to effectively communicate. c. a reaction to a food allergy. d. children not liking their friends.

I feel like it's most likely B, as by that age, assuming they're not speaking early, they usually babble. They can ask for basic needs by pointing and maybe saying a few words, but communication still isn't solid.

Hope that helped! :)

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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!

Bmust be the answer, as technically all organs move, so a is incorrect. all organs are made of different types of cells, so that isn’t a problem, so c is also incorrect. human hearts are very similar to many other animals’ hearts, so d is also incorrect, yet the heart is made of muscle, which is hard to grow in the lab so it would be correct to say b