The following code fragment reads in two numbers:

```
Scanner input = new Scanner(System.in);
int i = input.nextInt();
double d = input.nextDouble();
```
What is the incorrect way to enter these two numbers?
a. Enter an integer, a space, a double value, and then the Enter key.
b. Enter an integer, two spaces, a double value, and then the Enter key.
c. Enter an integer, an Enter key, a double value, and then the Enter key.
d. Enter a numeric value with a decimal point, a space, an integer, and then the Enter key.

d. Enter a numeric value with a decimal point, a space, an integer, and then the Enter key.