1. Given the following dataset, which feature map will transform the features into a linearly separable set? -3 -2 -1 1 2 3 (This figure represents the dataset as a number line with integer values between -3 and 3, both inclusive. The integers -3,-2, 2, 3 are labeled with a minus sign and the integers -1, 0, 1 are labelled with a plus sign.)