Timp r$$mas $0$

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Selecta$$i unul sau mai multe:

a$.D^{\text{'}}(AB{)}^{\text{'}}$

b$.A^{\text{'}}{B}^{\text{'}}{C}^{\text{'}}{D}^{\text{'}}+A^{\text{'}}{B}^{\text{'}}C{D}^{\text{'}}+A^{\text{'}}B{C}^{\text{'}}{D}^{\text{'}}+A^{\text{'}}BC{D}^{\text{'}}+A{B}^{\text{'}}{C}^{\text{'}}D+A{B}^{\text{'}}CD$

c$.A^{\text{'}}{D}^{\text{'}}+B^{\text{'}}{D}^{\text{'}}$

d$.(A^{\text{'}}B{)}^{\text{'}}+(C^{\text{'}}D{)}^{\text{'}}$

e$.(A+B^{\text{'}})(C+D^{\text{'}})$