Answer these questions about each chapter

Chapter 7 : How many times does Zoe's name appear ?
1. 1
2. 2
3. 3
4. 4
Chapter 8 : How many times does Nicky's name appear ?
1. 2
2. 4
3. 6
4. 8
Chapter 9 : How many times does the word "Doctor" appear ?
1. 1
2. 3
3. 5
4. 7
Chapter 10 : How many times does the word "thermos" appear ?
1. 1
2. 2
3. 3
4. 4
Chapter 11 : How many times does the word "tardis" appear ?
1. 2
2. 4
3. 6
4. 8
Chapter 12 : How many times does the word "pier" appear ?
1. 1
2. 2
3. 3
4. 4