A. Follow the steps below to use scikit-learn's linear regression in Python: 1. First, import the LinearRegression module from scikit-learn's linear_model library. 2. Then, create an instance of the LinearRegression object and fit your data to the model using the fit() method. 3. Once the model is trained, you can make predictions on new data using the predict() method. 4. Finally, you can evaluate the performance of the model using various metrics, such as R-squared, mean squared error, or mean absolute error.