What was the average daily salary of a coal miner in the late 1800s and early 1900s? A. $1.00 per day
B. $2.00 per day
C. $5.00 per day
D. $20.00 per day

hey dear the answer will be Option B

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering