Question

Read this text.

Which of the following BEST explains how text structure is used in this paragraph?
Select one:

to present a list of steps in a procedure

to present information that helps the reader form a mental picture

to present a problem and describe how that problem was solved

to present a primary relationship between two ideas

Polio used to be very common in the United States and caused severe illness in thousands of people each year before a polio vaccine was introduced in 1955. Most people infected with the polio virus have no symptoms, however, for the less than one percent who develop paralysis (cannot move arms or legs), it may result in permanent disability and even death.


There are two types of vaccines that protect against polio: Inactivated Polio Vaccine (IPV) and Oral Polio Vaccine (OPV). IPV, used in the United States since 2000, is given as an injection in the leg or arm, depending on age. OPV is taken by mouth. Polio vaccine may be given at the same time as other vaccines

Answer 1

The paragraph uses text structure to help readers visualize the impact of polio and the effectiveness of the polio vaccine in combating the disease.

Step-by-step explanation:

The structure of the paragraph provided is used to present information that helps the reader form a mental picture of polio as a disease, the severity of its effects, and the nature of the vaccines developed to combat it.

Polio used to be a common and feared disease in the United States, causing paralysis and sometimes death. However, with the introduction of the polio vaccine, first the inactivated Salk vaccine in 1955 and then the oral Sabin vaccine in 1962, polio has been nearly eradicated. These vaccines are effective against all three serotypes of the poliovirus that cause disease in humans. The paragraph details the types of vaccines, how they are administered, and their role in public health accomplishments, thereby enabling readers to visualize the history and impact of polio vaccinations on society.