Question 1a ^{Task 1}

Question 1b i ^{Task 1}

Question 1b ii ^{Task 1}

Question 2a ^{Task 2}

Question 2b ^{Task 2}

Question 3i ^{Task 3}

Question 1a

Question 1b

Question 2a

Question 2b

Question 3a

Question 3b

Question 1a

Question 1b i

Question 1b ii

Question 2a

Question 3a

Question 3b

Question 1a ^{Task 1}

Question 1b ^{Task 1}

Question 2a ^{Task 2}

Question 2b ^{Task 2}

Question 3 ^{Task 3}

Question 4 ^{Task 4}