During the campaign of 1828, the Democratic Party changed by

Adenouncing the spoils system.
Bveering away from Jeffersonian principles.
Ccrafting more nationalist policies.
Ddeveloping a system of local and state committees.

Verified Answer :

During the campaign of 1828, the Democratic Party changed by "b. veering away from Jeffersonian principles," since it was clear that national issues were becoming more modern.