Answer:
A
Explanation:
B is adding additional info. C is describing why it is true. D has nothing to do with anything. D has some info. Best answer is A in my opinion for main idea.
Answer:
This does not make sense. what do you want answered?
Explanation:
Answer:
Translated: Selnya fleksibel dan mempunyai bentuk loceng ketika melewati saluran darah yang sangat kecil. Ia ditutup dengan membran yang terdiri dari lipid dan protein, kekurangan inti, dan mengandung hemoglobin — protein kaya zat besi merah yang mengikat oksigen.
Explanation: