Financial crises usually occur after a bubble crashes. Some regulation on the following can prevent, or at least

decrease the frequency of bubbles happening in the system:

I. prevent or discourage short$-$selling

II$.$ allow or facilitate short$-$selling

III. make trading of financial assets easy

IV$.$ regulate borrowing for investment in financial assets

V$.$ make funds easily available for investment in financial assets

Select one:

a$.$ I and IV

b$.$ II

c$.$ II$,$ III and V

d$.$ III and IV

e$.$ IV