A) Define the term "political party".

b) Explain the three heads of the political party as a "three-headed political giant"?

Political party is a group of people who have the same ideology or political interest and position, they field candidates to diverse elections for them to implement their political ideas and agenda.

The 3 heads are:

Party in the electorate, this is when the members of that political party vote for the candidate of that same party. The party as organization, this one has a national office to support the activities of the party, they have a staff and intern organization as a company. The party in government, this is when people working in the office goverment and were elected call themselves members of the party.