The adoption of the initiative shifted the balance of power toward the people by allowing

The correct answer to this open question is the following.

You forgot to include the options for this question as well as the reference or context. However, doing some research we can say the following.

The adoption of the initiative shifted the balance of power toward the people by allowing citizens to introduce legislative proposals at the state or local governments.

The important thing here is that initiatives like this allow people to be proactive and involved in political participation. Citizens know that as they have the right to vo and elect their representatives, they also have a commitment to permanently being involved in the issues of their communities. If they elected their representatives, they have the right to be in constant touch with them, proposing the kinds of legislation that serve the best interests of the community. Citizens must not allow lobbyists to deal with Congressmen to pass legislations that only favors the personal agendas or political groups or large corporations.

a big one is

to appoint and regulate officers of the land and naval forces,

which caused much controversy ending the articles