Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Class | Part 1 | Part 2 | Part 3 | Part 4 |
| --- | --- | --- | --- | --- |
| 7a | *haitaną | *hēt | *hētun | *haitanaz |
| 7b | *hlaupaną | *hleup | *hleupun | *hlaupanaz |
| 7c | *haldaną | *held | *heldun | *haldanaz |
| 7d | *rādaną | *rēd | *rēdun | *rādanaz |
| 7e | *blōtaną | *bleut (West), *blēt (North) | *bleutun (West), *blētun (North) | *blōtanaz |
Question:
What was the class when part 4 was *rādanaz?
Answer:
7d