The economies of southern colonies centered around cash crops like tobacco, but the colonies of focused on trade and industry.

But the colonies of the north focused on trade and industry.

The northern colonies had a more diversified economy than the southern economies, which depended largely on large plantations of cash crops like tobacco and cotton.

The northern colonies had more trade, the farmers were mostly independent and self-sufficient, and also had some forms of rudimentary industry.

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering