What is the highest level of normalization the table below achieves?

courses table

course$\_$id course$\_$name department department$\_$location

$571$ History of Computing Computer Science Gates Hall $512$

$643$ Applied Geometry Mathematics Mirzakhani Bldg $303$

$112$ Poetry Writing Creative Writing Dove Hall $104$

$113$ Fiction Writing Creative Writing Dove Hall $104$

$515$ Python Programming $1$ Computer Science Gates Hall $512$

Question $3$ options:

a$)$

$3$NF

b$)$

$2$NF

c$)$

$1$NF

d$)$

This table is not normalized