Answer:
4. Methicillin is a strong antibiotic and MRSA developed resistance to it, making it harder to treat.
Explanation:
MRSA was first discovered in 1961. It's now resistant to methicillin, amoxicillin, penicillin, oxacillin, and other common antibiotics known as cephalosporins.
Answer: I believe c is what you're looking for, D is also a viable option, but C is more likely.
Explanation:
Daughter cells if I'm not mistaken
B. Mid ocean ridges always lie between continents.