Conditional formatting - Vlookup with multiple conditions

[Mux99]

Hello

The only data that will be inputted in the cells is either "D" or "N". I would like to highlight cells that follow the conditions below:

Search in column: A and if the value matches - then highlight the cell

• IF value = "D" and "D" or
• IF value = "D" and "N" or
• IF value = "D" and the previous cell to it's left's value = "N"

In the examples below cell C2 should always be highlighted

	A	B	C	D
1	orange	D	N
2	apple		D
3	banana		N	N
4	apple		D

	A	B	C	D
1	orange		N	N
2	apple		D
3	banana	D	D
4	apple	N

	A	B	C	D
1	orange	D	D
2	apple		D
3	banana		N	N
4	apple		N