D. To encourage party members to vote with party leaders.
Explanation:
The task of a party whip is to make that the members of the party get behind the same proposal and they all vote the same. They must assure discipline within the party in the legislature. They must convince some of them to adopt the party´s ideology and attend the voting sessions.
Lara used ninhydrin. Ninhydrin is generally applied with a spray bottle, and will work with the amino acids within the evidence to produce a purple-effect. This is also known as Ruhemann’s Purple.
