Three of the following statements are comma splices. Choose the one correctly punctuated statement that is not a comma splice

a) Coconut water is full of sugar and salt, so it is rumored to have been used during World War as a substitute for blood plasma.

b) Coconut water is full of sugar and salt, as a result, it is rumored to have been used during World War as a substitute for blood plasma .

c.) Coconut water is full of sugar and salt, it is rumored to have been used during World War as a substitute for blood plasma.

d ) Coconut water is full of sugar and salt, therefore, it is rumored to have been used during World War as a substitute for blood plasma.