If the marginal propensity to consumer is equal to $0\mathrm{.}8,$ the marginal propensity to save is equal to $q,$ and the autonomous spending multiplier is equal to $q,$

$q,$

$0\mathrm{.}2$;$10$

$0\mathrm{.}1$;$10$

$0\mathrm{.}2$;$5$

$0\mathrm{.}1$;$5$