What is the correct way to initialize a 1D array named grades with values 850, 900, 780, 920, and 880 in C?

To initialize a 1D array named grades with values 850, 900, 780, 920, and 880 in C, you can follow these steps:

1. Declare an integer array named grades with a size of 5. This can be done by writing:

   int grades[5];
   

2. Assign the desired values to each element of the array. You can do this by using the assignment operator (=) and specifying the values in curly braces {}:

   grades[0] = 850;
   grades[1] = 900;
   grades[2] = 780;
   grades[3] = 920;
   grades[4] = 880;
   

Alternatively, you can initialize the array with the values directly in the declaration statement:

int grades[] = {850, 900, 780, 920, 880};

After following these steps, the array named grades will be initialized with the values 850, 900, 780, 920, and 880.