Yes. All three YEI immediate result indicators are possible results for one and the same person within the same operation. However, it is important to stick to the requirement that the result indicators for "participant who receive an offer ..." and for "participant in education/training ..." only refer to results that materialise "upon leaving" the operation, or within four weeks of that date, and not later.
For practical guidance and examples on recording YEI result indicators see section 5.9 of Annex D of the EC Guidance document on Monitoring and Evaluation.