не е решена Fruit shop

string day = Console.ReadLine();
string frut = Console.ReadLine();
double quantity = double.Parse(Console.ReadLine());

double price = 0;
if (day == "Monday" || day == "Tuesday" || day == "Wednesday" || day == "Thursday" || day == "Friday")

    if (frut == "banana")
    {
        price = quantity * 2.50;
    }
    else if (frut == "apple")
    {
        price = quantity * 1.20;
    }
    else if (frut == "orange")
    {
        price = quantity * 0.85;
    }
    else if (frut == "grapefruit")
    {
        price = quantity * 1.45;
    }
    else if (frut == "kiwi")
    {
        price = quantity * 2.70;
    }
    else if (frut == "pineapple")
    {
        price = quantity * 5.50;
    }
    else if (frut == "grapes")
    {
        price = quantity * 3.85;
    }


Console.WriteLine(price);