$51.$ Which of the following entities is subject to the $469$ passive activity rules?

a$.$ Veritas Distribution, a wine distributor organized as an S corporation.

b$.$ Poole & Steiner Accountants, Inc., a personal service corporation.

c$.$ High Line, Inc., a new company that manufactured farm implements during the

testing period.

d$.$ Stockman, Inc., a trucking firm whose owners own less than $10\%$ FMV of stock$\mathrm{.}51.$ Which of the following entities is subject to the $469$ passive activity rules?

a$.$ Veritas Distribution, a wine distributor organized as an S corporation.

b$.$ Poole & Steiner Accountants, Inc., a personal service corporation.

c$.$ High Line, Inc., a new company that manufactured farm implements during the

testing period.

d$.$ Stockman, Inc., a trucking firm whose owners own less than $10\%$ FMV of stock.