Answer:
B. Racism
Explanation:
Racism is an act of prejudice against a particular individual or group that results into discrimination, hatred, antagonism, violent or intimidating behaviour, undue show of superiority or bias. This racist act is always due to social perceptions of race or ethnic differences.
The attacks on the Roma in Waterford in 2014 was racially motivated because the Roma (formerly referred to as gypsies) are of different ethnicity