What type of variable is duration?

R CODES:

class(Spotify$duration)

## [1] integer

spotify$duration = spotify$duration/(60*1000) #convert to minutes

A. Numeric and discrete

B. Numeric and continuous

C. Categorical and ordinal

I think duration is the time of music in second. It should be numeric and continuous.

However, the class() funnction results "integer". This means that duration is discrete.

Thus, what should i asnwer?