Correct option is B
Statements:
Some artists are celebrities
All celebrities are millionaires
Least possible Venn Diagram is:

Conclusions:
A. No celebrities are millionaires
This is false because the second statement explicitly states that all celebrities are millionaires.
B. Some artists are millionaires
This is true because:
From the first statement, some artists are celebrities.
From the second statement, all celebrities are millionaires.
Therefore, the artists who are celebrities are also millionaires.
C. No millionaires are celebrities
This is false because the second statement explicitly states that all celebrities are millionaires.
D. All artists are millionaires
This is false because only some artists are celebrities (and hence millionaires). There is no evidence that all artists belong to the group of millionaires.
Hence, option (b) is the correct answer.