When using a fill instruction to transfer data into an array, which of the following data types would be converted?

When using a fill instruction to transfer data into an array, the instruction allows for data to be placed into the array even if there is a difference in data types. The fill instruction is designed to handle type conversions automatically during the transfer process.

In this context, SINT (which is an 8-bit signed integer), DINT (a 32-bit signed integer), and REAL (a floating-point number) can all be represented in an array initialized to accommodate various types. The fill instruction will convert the data types as necessary to ensure that the values are appropriately placed in the target array. This capability to handle multiple data types seamlessly is a key feature of the fill instruction, contributing to its versatility in programming with arrays.

Thus, the correct answer encompasses all the listed data types, because they can all undergo conversion when being transferred into the array by the fill instruction.