The Rámáyan of Válmíki, the word 'Rama' can be breakdown into two syllables and three bija mantras, 'Ra', 'A', and 'Ma'. The three bija mantras identify Rama as supernatural as,
'Ra' signifies the Sun,
'A' signifies fire or Agni, and
'Ma' signifies the Moon.
Hence, the three being the supernatural power as the sources of light, therefore, the repetition of the word Rama invokes the supreme light on God and prevents any harm.
The answer is A im pretty sure <span />
Depends on what type of crowd, and if that person seems to be endangered