Final answer:
B. Suzuki would be the out-of-place last name on a poster promoting non-discrimination in war industries during World War II due to the historical discrimination against Japanese Americans.
Step-by-step explanation:
The question concerns which last name on a poster promoting non-discrimination practices in war industries during World War II would be out of place. Considering the historical context of discrimination against Japanese Americans, including events such as the internment of roughly 120,000 individuals under Executive Order 9066 and the Supreme Court's ruling on the unconstitutionality of race-based classifications. In addition, Executive Order 8802 was signed to prohibit racial discrimination in defense industries. Given this context, the last name Suzuki would stand out as out of place, as it is Japanese and would likely have faced discrimination during this era.
The other last names listed, O'Brien, Suzuki, and Kaczmarczyk, represent individuals from different racial or ethnic backgrounds, which demonstrates inclusivity and diversity in the workplace.
However, the name Washington does not align with the theme of diversity as it is a commonly associated with a specific race, and does not represent a group that has historically faced discrimination in employment.