Read the description of a science experiment below. Which part of the experiment is the third step in the scientific method (testing a hypothesis)?
Sarah wants to create an experiment to determine whether
an object's weight determines how fast it will fall. She
hopes to prove that heavier objects fall faster than lighter
ones. She buys two weights that have the same size and
shape. However, one is heavier than the other. She has her
mother drop both weights at the same time from a
window. To her surprise, the weights land at exactly the
same time. She repeats the experiment several times, but
the weights always hit the ground at the same time, Sarah
is forced to admit that she was wrong; an object's weight
does not affect how fast it falls.

In 911, a group of vikings lead by rollo besieged paris and chartres. after a victory near chartres on 26 august, charles decided to negotiate with rollo. the talks were led by hervé, the archbishop of reims. this resulted in the treaty of saint-clair-sur-epte, which granted rollo and his soldiers all the land between the river epte and the sea. it also granted him brittany, "for his livelihood". at the time, brittany was an independent land which france had not been able to conquer. in exchange, rollo promised the king his loyalty and military assistance when needed. also rollo also agreed to be baptised and to marry gisela, the king's daughter. the territory given rollo is about the same as upper normandy. this would grow to become normandy under rollo's descendants. - wikepedia