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Hi I have 3 questions can you help me please?

1- The recently discovered step pyramid near the Egyptian city of Edfu could be decades older than the Great Pyramid of Giza.

A- The step pyramid recently found near the Egyptian city of Edfu cannot be as old as the Great Pyramid of Giza, which was discovered decades before it.

B- Egyptians could have built the Great Pyramid of Giza many decades before the step pyramid that has been discovered near the city of Edfu recently

C- The step pyramid that has recently been discovered near the Egyptian city of Edfu may have been built decades before the Great Pyramid of Giza.

D- The step pyramid recently discovered in the city of Edfu in Egypt and the Great Pyramid of Giza could have been built in different decades.

E- The step pyramid recently discovered near the city of Edfu in Egypt may not be as old as the Great Pyramid of Giza

I said C.

2- Organic food doesn't have any additional nutritional benefits when compared with conventionally produced food, nor is it any safer to eat.

A- While conventionally produced food and organic food share the same nutritional qualities, it is safer to eat organic food.

B- There is no difference between organic food and conventionally grown food in terms of nutritional value, but the latter is safer to eat.

C- Conventionally produced food is safer to eat than organic food and contains more nutrients

D- Organic food is not as safe to eat as conventionally produced food and is not as nutritious, either.

E- Organic food is neither more nutritious nor safer to eat than conventionally produced food

I said E.

3- The teenager who admitted illegally hacking into a school's computer system was discharged without conviction.

A- The teenager who claimed that he had committed an illegal act by hacking into a school's computer system was not convicted.

B- The teenager who illegally hacked into a school's computer system was not found guilty and was released despite his confession of the crime.

C- The teenage hacker was not convicted of any guilt although he admitted that it was illegal to hack into a school's computer system.

D- The teenager who illegally hacked into a school's computer system was let off with no punishment upon his denial of the act.

E- The teenager who hacked into a school's computer system was not found guilty after he insisted that it wasn't an illegal act.

I said B