Which of the functions below could have created this graph?

Answer:
B
Step-by-step explanation:
Observation : Graph is opening up, means end behaviour is same that is graph is ending in the same side .
So the graph must represent a even degree polynomial .
Observation : Graph is opening on the positive side of the y axis .
It means the leading coefficient of the polynomial must be positive .
So we are looking for the option which have even degree and the leading coefficient is positive . The correct option is B .