An sobject named application _c has a lookup relationship to another sobject named position_c.
both application _c and position c have a picklist field named status_c.
when the status c field on position __c is updated, the status_c field on application _c needs to be populated
automatically with the same value, how can a developer accomplish this?

a . by changing application c. status c into a roll-up summary field.
b. by changing application c. status c into a formula field.
c. by using an apex trigger with a dml operation.
d. by configuring a cross-object field update with a workflow.