ONE A binding promise is:

a$.$ central to the modern definition of contracts.

b$.$ unimportant in the modern definition of contracts.

c$.$ not relevant to the modern definition of contracts.

d$.$ central to the modern definition of easements.

TWO An Offer is best defined as:

a$.$ a manifestation of the intention $[$of a party$]$ to act or refrain from acting in a specified manner.

b$.$ an unwritten agreement $[$of a party$]$ to act or refrain from acting in a specified manner.

c$.$ a legally binding understanding between parties not to act in a specified manner that would affect the rights of others.

d$.$ the positive intention of a party not to act in a specified manner.

THREE Express contracts occur when:

a$.$ the contract is created by more than two parties.

b$.$ the contract is created quickly.

c$.$ there is a written or oral expression of intent by the parties to enter into a legally binding agreement.

d$.$ there is a written or oral expression of intent by the parties to enter into a nonbinding agreement.