Assuming that the statements below are related to the text above, choose the correct alternative: 1- The instability of a land mass is due to the ...

Assuming that the statements below are related to the text above, choose the correct alternative:
1- The instability of a land mass is due to the decrease in shear resistance.
2- The movement of masses is caused by the opening of erosive features.
3- The Brazilian territory has been exposed to environmental problems such as soil contamination.
4- The city of Rio de Janeiro was the first in Brazil to adopt geotechnical risk management policies.
5- The vulnerability of the exposed means to risk is not considered in the risk management equation.

1- True
2- True
3- True
4- True
5- False
a) 1, 2, 3, 4, 5
b) 1, 2, 3, 4, 4
c) 1, 2, 3, 4, 1
d) 1, 2, 3, 4, 2
e) 1, 2, 3, 4, 3