Table:
text: 1973–74 Football League Cup
Third round
Ties
Tie_no Home_team Score_1 Away_team Attendance Date_
14 Sunderland 0–2 Liverpool 36208 21-11-1973
15 West Bromwich Albion 1–3 Exeter City 10783 31-10-1973

Question: Who is the away team for the No. 15 tie in the third round of the 1973/74 Football League Cup?