How should the loaded Iris dataset be separated into the conventional feature and target variables?
X = iris.target and y = iris.data
X = iris.target
y = iris.data
X = iris.data and y = iris.target
X = iris.data
y = iris.target
X = iris.feature_names and y = iris.target_names
X = iris.feature_names
y = iris.target_names
X = iris.data and y = iris.data