Consider the following statements regarding the characters of coacervate droplets and choose the correct answer:
1. These can take up materials from the external medium and some of them show enzymatic activities
2. When glucose-I-phosphate is dissolved in the equilibrium liquid, the droplets are found to store starch
3. Coacervate droplets of some sort have been prepared with phosphorylase and β-amylase
4. Polynucleotides were synthesized enzymatically within coacervate droplets

A. Only 1, 2 and 3 are true

B. Only 2, 3 and 4 are true

C. Only 1 and 4 are true

D. 1, 2, 3 and 4 are true

Answer: Option D