Features of Navigation Marks

Do you know the features of these Navigation Marks?

Which are the correct features?

1. 

starboard mark.png
Features:

Hover over

to see

the answer!

1st & 2nd

Option

2.

port markers.png
Features:

Hover over

to see

the answer!

2nd & 3rd

Option

3.

Isolated danger mark.png
Features:

Hover over

to see

the answer!

2nd & 3rd

Option

4. 

cardinal mark.jpeg
Features:

Hover over

to see

the answer!

1st, 2nd

& 4th Option

5.

Features:

Hover over

to see

the answer!

1st & 2nd

Option

6.

Special mark.png
Features:

Hover over

to see

the answer!

1st & 2nd

Option