Final answer:
Rudyard Kipling refers to 'triumph' and 'disaster' as impostors in his poem 'If—', implying they should be treated the same. There isn't a direct answer in the options provided, but they could metaphorically be considered 'twins'.
Step-by-step explanation:
In the poem If— by Rudyard Kipling, he refers to triumph and disaster as 'impostors'. The specific line from the poem is, 'If you can meet with Triumph and Disaster and treat those two impostors just the same;'. Therefore, among the provided options, the correct answer is not explicitly stated in the poem.
However, based on the broader interpretation of treating both equally, one might consider them as 'twins' in a metaphorical sense, as both are events in life that should be approached with the same level-headedness.