What did the tutor indicate about extra lectures?

The correct option indicates that extra lectures are not mandatory for students. This suggests that while the extra lectures may be available for the benefit of students who wish to enhance their understanding of the material, there is no requirement to attend them. This allows students the flexibility to decide what additional support they may need without the pressure of obligatory attendance.

In an educational setting, offering optional lectures can promote a more engaging learning environment, as students who attend can do so out of interest or need for further clarification on topics, while those who feel confident in their grasp of the material are not forced to participate. This approach encourages self-directed learning and respects individual student needs.