Which statement best describes the text structure of this sentence and explains why it is used?

A cause-and-effect text structure is used to show the relationship between Walter and Vida Hayter.
A sequence text structure is used to describe an order of events in Walter and Vida Hayter's life.
A compare-and-contrast text structure is used to show how Walter Hayter is different from Vida Hayter.
A cause-and-effect text structure is used to explain why Walter and Vida Hayter sailed to the United States.

cabeza de vaca was an spanish explorer and n his long exploration of 11,000.km. from florida to present-day mexico, he went through a series of calamities and setbacks that only added to his deeds. he applied his religious creed with the humanist idea, always current and universal, that all men were equal before god and destiny without any discrimination. as an explorer, he became a slave to the tipinoga, then his shaman pointer, later and after an operation of heart to an indian (from which both came alive) he achieved stardom and became a hero followed by a crowd that professed unusual respect and admiration.

the correct answer is the following.

one of the groups i belong to is the boy scouts. this is a problem-solving group because it has tasks that we need to solve in order to other people in different activities such as the rescue of lost pets, or elder people in need.

the other group i belong to is kids pro environment, and is an information-sharing group that tries to create conscience about the risks and problems that generate pollution in our cities. we share information to other students and parents on the importance of keep our communities clean and our skies clear.  

lemme actually be useful and say i believe the answer is the first one.