Predict the behavior of NH₃ when it reacts with BF₃.

NH₃ will accept a lone pair from BF₃, forming a Lewis adduct.

NH₃ will donate a lone pair to BF₃, forming a Lewis adduct.

NH₃ will form a covalent bond with BF₃ without electron pair sharing.

NH₃ will donate a proton to BF₃.