Immortality and the sons of Elrond

[Galin]

Originally Posted by Mithadan

I do not think that Elros' children had the option of choosing to be numbered among the Elves.

If this is in response to my recent post I must emphasize my 'in potential'

(...) Which circles back to the original question. Did Elladan and Elrohir have this choice as well?

'But to the Children of Elrond a choice was also appointed...' (Appendix A). Tolkien's letter seems in agreement with this much, that they too had a choice.