Introduction to C# --- Arrays

I am struggling in Module:Introduction to C# and its Contents:Arrays
This question ask me that “How can you access the element in the third row and second column of a two-dimensional array named grid in C#?”
I tried answer “matrix[2, 1];” but it said “Incorrect answer!”.
What is the answer or its format to this question?

Hello, have a look on the naming of the array again in the question.

Thanks! I know the correct answers :slight_smile: