Answer:
a. A nonresident alien can be an S corporation shareholder. (However, generally, we can't see non resident aliens owning shares, but it is not illegal.)
c. An S corporation can have more than 100 shareholders, since families are treated as a single shareholder.
Step-by-step explanation:
A nonresident alien is a person who is not a U.S. citizen and does not pass the green card or substantial presence tests used to determine tax status and citizenship. Foreign Students are a good example for this.
these non residents usually do not hold ownership in corporations.
The term "S corporation" means a "small business corporation".
S corporations limit is 100 members, however, since the family members are treated as "individual one person", the number 100 could change in the practical scenario.
The option d is obviously wrong!
Option b is incorrect as well. Corporations and Partnerships can not own stake in S corporations.