Figure $5-2$

$($a$)$

$($b$)$

$($c$)$

$($d$)$

$($e$)$

Oranges

Oranges

Dranges

Oranges

Oranges

Which panel in Figure $5-2$ shows the effect of an increase in the price of oranges, other things constant?

panel a

panel b

panel c

panel $d$

panel e