Answer :
The correct answer for this question would be the first statement. Based on the description above, the reason why her hypothesis can't become a scientific theory at this point because a scientific theory explains a wide range of phenomena, and this does not. Hope this answer helps.
The correct answer is option A, A scientific theory explains a wide range of phenomena, and this does not.
Reason -
A scientific theory is basically an explanation for a wide range of phenomena. Also a hypothesis is just an educated guess of some finding which is based on the past observation. A scientific theory is more tested and proven level of an observation that affects a large set of sphere where as a hypothesis is more sort of directed and limited guess.