see the attached picture and answer accordingly

a$)$ Using the optimistic and pessimistic criteria, which alternatives are best? $(5$ Points$)$

b$)$ Using the criterion of realism $($alpha$=0\mathrm{.}7)$ and equally likely criterion, which

alternatives are best? $(10$ Points$)$

c$)$ What alternative is best using EMV and EVPI criteria? $(15$ Points$)$

d$)$ What alternative is best using expected opportunity loss? $(10$ Points$)$