The two factors responsible for 'opening the door' and 'keeping this door open' to a museum visitor (paragraph 4) are, respectively:

a

pressure of tests and grades / a museum's tense atmosphere.

b

the rational reaction of the visitor / a museum's threatening atmosphere.

c

the emotional reaction of the visitor / the museum's nonthreatening atmosphere.

d

the negative reaction of the visitor / a museum's tense atmosphere.

e

a museum's tense atmosphere / pressure of tests and grades.

Próxima Questão