Task: Instance Description Understanding (ontology: Sciences/Computer_Science)

Which of the following definitions best describes the instance 'month'?

A. A time unit which is equal to 3600 seconds or 60 minutes.
B. A time unit which is equal to 12 months which is science is taken to be equal to 365.25 days.
C. A time unit which is equal to 7 days.
D. A time unit which is approximately equal to the length of time of one of cycle of the moon's phases which in science is taken to be equal to 30 days.

Answer: A time unit which is approximately equal to the length of time of one of cycle of the moon's phases which in science is taken to be equal to 30 days.