Answer
See explanation below.
Work Step by Step
a.) 1 orbital since 1s is an "s" subshell
b.) 5 orbitals since 4d is a "d" subshell
c.) 3 orbitals since 3p is a "p" subshell
d.) 9 orbitals in total: 1 from 3s, 3 from 3p, and 5 from 3d
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