The Static modulus of elasticity $$(E_{c})$$ of the concrete for the short term loading may be derived as

A

$$E_{c}=4800\sqrt{f_{ck}}$$

B

$$E_{c}=5000\sqrt{f_{ck}}$$

C

$$E_{c}=5200\sqrt{f_{ck}}$$

D

$$E_{c}=5500\sqrt{f_{ck}}$$