Consider the following statements in respect of cast iron pipes employed for water supply:
1. Easy to make joints
2. Strong and durable
3. Corrosion resistant
4. Long life
Which of the above statements are correct?
1
1, 2 and 3 only
2
1, 3 and 4 only
3
2, 3 and 4 only
4
1, 2, 3 and 4