Some parts of a sentence have been jumbled up and labelled P, Q, R and S. Select the option that gives the correct sequence in which these parts can be rearranged to form a meaningful and grammatically correct sentence.

S1:Regardless of the highly unstable
P. mutual funds are still considered
Q. nature of high risk and rewards,
R. as a viable investment opportunity
S. to make substantial gains
S6: in short term.