No species of sea turtles are threatened or endanger

Butchered for their eggs, meat, skin, and shells, ocean turtles experience the ill effects of poaching and over-misuse. Practically all types of ocean turtle are presently named jeopardized, with three of the seven existing species being fundamentally imperiled.

Explanation:

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering