C# compiler error for single line if statement with 2 actions

It was hard to find a good title explaining the issue. I will try to explain the problem in detail. I try to use a single line if statement with 2 actions inside another if statement. However, this usage fails the parent if statement's result.

Before going into deep I have to stress that the method below returns FALSE:

draggedItem.GetComponent<PreparedItem> ().CheckPreparationAvailability () 

The method above is included inside two if clauses below. Therefore I expect the result FALSE immediately. The only changing part is the last statement, focus there.

Problematic version without parentheseses:

if (acceptedTypeID == draggedItem.CurrentTypeID.foodTypePart1
        && draggedItem.GetComponent<PreparedItem> () != null 
        && draggedItem.GetComponent<PreparedItem> ().CheckPreparationAvailability () // RETURNS FALSE, DO NOT FORGET
        && rootTransform.GetComponentsInChildren<DragAndDropItem> ().Length <= 0
        && draggedItem.RootTransform.GetComponentInChildren<PlateCell>()
        && (true)? true : true) { // problem here 

        'if' is considered as TRUE and the inside is executed ...


}

Working version with parentheseses:

if (acceptedTypeID == draggedItem.CurrentTypeID.foodTypePart1
        && draggedItem.GetComponent<PreparedItem> () != null 
        && draggedItem.GetComponent<PreparedItem> ().CheckPreparationAvailability () // RETURNS FALSE, DO NOT FORGET
        && rootTransform.GetComponentsInChildren<DragAndDropItem> ().Length <= 0
        && draggedItem.RootTransform.GetComponentInChildren<PlateCell>()
        && ((true)? true : true)) { // WORKS AS EXPECTED 

        'if' is considered as FALSE which is expected and the inside is NOT executed ...


}