Which of the following represent advantages of GPL-licensed software? Check all of the boxes that apply It is always free of cost.

It allows the source code to be modified.

It can be redistributed by the user.

It can be included in proprietary software.

It can be modified and re-sold as proprietary software.

Two students are discussing the flow of electricity. student a says that voltage is a measure of the amount of electron flow in a circuit. student b says that power is the product of voltage and current. which of the following statements is correct? a. only student a is correct b. only student b is correct c. both of the two students are correct d. neither of the two students is correct