Consider the following statements regarding Sickle Cell Anaemia:

1. It is one of the least prevalent genetic blood disorders caused by sickle-shaped haemoglobin

2. Average lifespan of people with Sickel Cell Disease is 40-47 years

3. Abnormal haemoglobin makes the red blood cells hard, sticky and resemble a sickle, clogging the blood flow

Which of the above statements is/are correct?