Answer:
A
Explanation: Its not focused on one movie. Teachers find that kids doing history related stuff get better grades because of this. Silent films are also very easy to research.
The correct answer is a. tyler decided to give away toys, hoping it would give him more space.
"hoping it would give him more space." is an adverb clause for his reasoning behind it and is a clause that fulfills the purpose that you described. D doesn't' have a clause because it is a phrase, c is a phrase also, while b is a clause that is an adjectival clause.
B stated is the right answer
I'm guessing your asking for a grammar check? If so then...
After the children left the school bus, they dropped their bags on the front proches of their houses. The children yelled "Hello!" to their mothers and fathers and ran towards the playground to play tag with each other.