Answer:
Option b). the other solution to the function is 
Step-by-step explanation:
In a given quadratic function f(x) = ax² + bx + c, if b² - 4ac < 0 then bothe the solutions of the function will have two complex roots.
Roots of this function will be the complex conjugates.
Since one root of the equation is given as 
Then other solution will be its complex conjugate as 
Therefore, Option B) will be the answer.