GM Pioneers Trackers have been around since 1984, when General Motors Co. introduced a class of stock linked to its former computer-services unit, Electronic Data Systems Corp. A second class, for its Hughes Electronics Corp. satellite unit, came out the following year.
Take context from the input text and decide on the accurate relationship between 'Hughes Electronics' and 'General Motors' from the options provided.
Options: creator, chief executive officer, parent organization, brand