I am a final year business student and as I was tested positive with covid, I had to miss my classes. Unfortunately, during my time away from studies I also missed the lectures where my professor explained the concepts necessary to complete my dissertation, and so, now I have no idea how to go about it.

And, naturally, I am finding it hard to write my proposal. From what I have heard, that students write proposals for dissertation to justify the research topic and inform the supervisor about how they are going to conduct the research.

Now, I need to know if it is necessary to submit a proposal in a written form, or I can justify my topic and share with my professor my research plan verbally (by visiting him in his office)?