An advertiser wants to allocate additional budget to advertising a new product line. In order to accomplish this goal, the advertiser should create:

An advertiser wants to allocate additional budget to advertising a new product line. In order to accomplish this goal, the advertiser should create:

A)  an ad group specific to the product line with a higher daily budget
B)  additional text ads that specifically feature the product line
C)  a campaign with a separate daily budget specific to the product line
D)  an ad group specific to the product line with targeted ad text

Answer : a campaign with a separate daily budget specific to the product line

Reason :

In AdWords, you can assign a daily budget to each individual campaign, or use shared budgets to allocate budget across multiple campaigns. A shared budget is ideal if you don't have a lot of time to spend setting up and monitoring individual campaign budgets, but would still like to get the most clicks possible for your ads within a set budget.

When a shared budget is in use, AdWords can automatically adjust how budget is allocated across different campaigns to help you improve your return-on-investment.You can always switch back to using individual campaign budgets for full control over how much you spend per campaign. Go to the Shared library in your account to set up or manage your shared budget.

Read more at https://support.google.com/adwords/answer/2517512?hl=en