16. among the following, the correct statement. (a) between nh and ph,, nh, isa better electron donor.becausethe lone parotelectrons occupies spherical 's orbit

16. Among the following, the correct statement. (a) Between NH and PH,, NH, isa better electron donor.becausethe lone parotelectrons occupies spherical 's orbital and is 1ess directional (b) Between NH, and PH4, PH, is a better electron donor because the lone pair of electrons occupies sp orbital and is more directional (c) Between NH, and PH,, NH, is a better electron donor because the lone pair of electrons occupies sp orbital and is more directional (d) Between NH, and PH, PH, is a better electron donor because the lone pair of electrons occupies spherical 's' orbital and is less directional .