choose the correct option to accept a vector of test scores (values of type double between 0.00 and 100.00) and an empty vector of type char. The function should fill the second vector with the appropriate letter grade for each score in the first vector. So, if the first score were 75, the first letter grade would be C. The scale is 90 A, 80 B, 70 C, 65 D,

void calcLetterlconst vector&V1, vector &V2) forlint i-0;i= 90.0) lg = 'A'; else if (V1li]>-80.0) else if (V1li]70.0) g = 'C'; else if (V1li-65.0) else V2.push backllg); /There is no V2lil void calcLetter(const vector &V1 vector &V2) forint i=0;.V1.size();i++) char lg switch V1li]) case (>= 90.0): break; case (-80.0) break; case (-70.0) break; case -65.0): break; default: V2.push_ backlg): void calcLetter(const vector &V1, vector V2) forint i=0;.V1.size();i++) char lg; fV1i>-90.0) else if (V180.0) lg - 'B' else if (V1[i] >= 70.0) g='C'; else if (V1li>65.0) lg = 'D'; else V2push backlg