Doritos brand's "Crash the Super Bowl" contest resulted in a healthy uptick in Twitter, Facebook, and other social media activity

For each of the following variances, state which manager is most likely to be responsible for the variance

Variance Responsible Manager Direct Materials Efficiency Direct Labor Cost Variable Overhead Efficiency What will be an ideal response

Riparian rights would include:

A. rivers and streams B. subterranean cavities C. arms or bays of the ocean D. All of the above