Read the sentences. the inventor initially struggled to solve the problem. she discovered an ingenious solution. which revision uses a coordinating conjunction to combine the sentences? the inventor initially struggled to solve the problem until she discovered an ingenious solution. the inventor initially struggled to solve the problem; however, she discovered an ingenious solution. the inventor initially struggled to solve the problem, but she discovered an ingenious solution. the inventor initially struggled to solve the problem before she discovered an ingenious solution.

The inventor initially struggled to solve the problem, but she discovered an ingenious solution.
C IS THE CORRECT CHOICE JUST TOOK THE TEST

these have to be in your own words

depends on your school

when i was in high school i took ap biology my senior year and it was the hardest one for me because my teacher finished the material within the first month of school and then went on to doing advanced college level it was horrible. but at a nearby school ap biology was one of the easier aps. also, it depends on what you are interested i like math a lot so ap calculus was easier for me than most but i hate history so ap us government was harder for me than most.