Marina Board Exam: What lights and shapes are to be shown if a vessel is aground?

Marina Board Exam 

What lights and shapes are to be shown if a vessel is aground? 

A. Lights prescribed in Rule 30(d) 
B. Lights prescribed in Rule 30(a) 
C. Lights prescribed in Rule 31(a) 
D. Lights prescribed in Rule 31(b) 


Answer:  A.  Lights prescribed in Rule 30(d)