These days most of the students do their assignments with the help of the internet.

• A. These days most of the students are doing their assignments with the help of the internet.
• B. These days most of the assignments are done with the help of the internet by the students.
• C. These days the assignments are being done with the help of the internet by most of the students.
• D. These days the assignments are done with the help of the internet by most of the students.