Can someone tell me which one to click pls and you

Acircle has a circumference of 7.850 units. what is its radius?

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.

Given the equation negative 4 square root x minus 3 equals 12