Self Assessment

Sir, can you please tell me what’s the answer and how to answer this question…
Daljit received a notice from HMRC to submit his self-assessment tax return for the tax year 2017/18. He did not submit the return by due date.
What can HMRC do to collect any tax owing in respect of Daljit’s unfiled return?

a. Start a compliance check enquiry into the return
b. Make a determination
c. Raise a discovery assessment
d. Offer an internal review