Read the following text and answer the following questions on the basis of the same :
In a school, a Design exam is conducted in class x . Rubina wins `1^(st)` prize. She made a square embroidery handkerchief with 9 circular thread designs on it

On a square handkerchief, nine circular designs each of radius 7 cm are made (see in figure) . Find the circumference of one of the circular design

Options

A. 41 cm
B. 41 cm
C. 43 cm
D. 44 cm

Answer

D