During the process B(OH)3 —B(OH)4], the hybridization of B changes from(1) sp2 to sp3 (2) sp3 to sp2(3) sp to sp2 (4) sp3d to ssp2please answer fasttt!

During the process B(OH)3 —B(OH)4], the hybridization of B changes

1.	During the process B(OH)3 —B(OH)4], the hybridization of B changes from(1) sp2 to sp3 (2) sp3 to sp2(3) sp to sp2 (4) sp3d to ssp2please answer fasttt!
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