Choose the correct pairing of the parts of the code with the corresponding description. A. ttest_ind() . 1. The two samples or groups whose means are to be compared. B. group1,group2 2. Function to perform a two-sample independent t-test C. alternative = 'two-sided' 3. Indicates that the population standard deviations of the two groups are assumed to be equal D. equal_var = True 4. Set the 'alternative' parameter to indicate that the type of test is two-tailed