Solve the following equation algebraically: How many solutions does this equation have? Explain. a. ; One solution because only -1 will satisfy the equation. b. ; No real solution because there is no real number that, when squared, produces -1. c. ; Two solutions because the square root of 1 is positive 1 and negative 1. d. ; One solution because only -1 will satisfy the equation. Please select the best answer from the choices provided