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:
| Tie no | Home team | Score | Away team | Date |
| --- | --- | --- | --- | --- |
| 1 | Middlesbrough | 0–0 | Orient | 11 March 1978 |
| Replay | Orient | 2–1 | Middlesbrough | 14 March 1978 |
| 2 | West Bromwich Albion | 2–0 | Nottingham Forest | 11 March 1978 |
| 3 | Wrexham | 2–3 | Arsenal | 11 March 1978 |
| 4 | Millwall | 1–6 | Ipswich Town | 11 March 1978 |
Question:
When was Arsenal was the away team?
Answer:
11 March 1978