The correct answer is claim.
A claim is any statement or point of view a person might take on a particular argument. If you agree with one side of an argument, it means that you have a claim when it comes to that side. For example, if you are pro abortion, your claim is that abortion should be legal.
Answer:
grandpa is walking on the stairs very slowly
Complex; it has both a dependent and independent clause.
I can conclude it would be answer b
In the forest lies a sleeping best.
Smashing against the bat, the ball soared over the stands.
Before our first class, I want to know what grade you got.
After the snowstorm, we came out of the cave and walked home.
I am aware of the error, and I will fix it as soon as possible.
When the saints go marching in, I want to be in that number.
Between a rock and a hard place, she did what she thought was best.
Broken shards of glass cut into his feet as he tried to cross the shattered bridge.
Because of her beautiful smile, he could not help but fall in love with her.
Because she smiled at him, his day became brighter.
Not 100% sure about the comma placement, but I hope this helped :)