You might want to rephrase your question to be about what options were being considered at that time and what the figures involved had to say about how they handled the matter. Otherwise, this question dips into counterfactual history which is frowned upon in /r/AskHistorians as noted in the rules:

Is this the right place for your question?

• Questions should be about what did happen, not what could have happened. Questions of that type should be posted in r/HistoryWhatIf.

While you wait for answers, you might be interested in reading some previous threads on the Iranian Hostage Crisis:

• How bad was the planning for Operation Eagle Claw (the attempt to rescue hostages in Iran) Was it bad, terrible or inexcusable? - 12 comments, over 2 years old.
• There's a brief summary of all of the points of failure in Operation Eagle Claw as well as why such a decision was undertaken.
• Why didn't we go to war with Iran in 1979? - 19 comments, over 9 months old.
• The commenters provide a great deal of political, military, and geographic context for why war was not declared.

Sorry, but your submission has been removed because we don't allow hypothetical questions. If possible, please feel free to rephrase the question so that it does not call for such speculation, and resubmit Otherwise, this sort of thing is better suited for /r/historywhatif.

Alternatively, if you can reword it as /u/OldWorldGlory suggests, you can re-post it as a new question.