Respuesta :
Answer: Option (A) is the correct answer.
Explanation:
A hypothesis is defined as the proposed explanation or assumption that will give an idea what could be the result.
Therefore, when teacher asked what could be done to speed up the reaction then students are actually forming a hypothesis that by increasing the temperature the result be dissolution of all the four salts.
Thus, we can conclude that the statement can BEST be described as your group's hypothesis.