Sally works for Red plc. She is paid 4,800 per month. Show Sally's the employer's Class 1 contributions paid by Red plc for 2021/22. 0 5,727 0 6,736 0 6,853 O 8,066 What will be the NIC contribution per week under Class 3 O 13.40 o 14.60 15.40 15.60 Malcolm is self-employed and has trading income for 2021-22 of 55,000. His Class 4 NICs payable for the year are: O 3,740 (50270-9768 = 40502@9%=3645) (55,000 - 50270=4730@2% =95) O 4,224.60 O 4.950.00 O 938.80 Which classes of national insurance contribution is an employer responsible for paying? O Both class 2 and class 4 O Class 1 only Class 1A O Class 2 only