Average $$=$$(＄$$2+$$＄$$4+$$＄$$6+$$＄$$8+$$＄$$10$$)$$\div 5=$$＄$$6=600$$ pennies. 
The average value of ＄$$2$$, ＄$$4$$, ＄$$6$$, ＄$$8$$, and ＄$$10$$ is~\uline{~~~~~~~~~~}~pennies. 
Options:
[a] $$3000$$ 
[b] $$600$$ 
[c] $$550$$ 
[d] $$500$$ 