A low literacy rate usually indicates that a country lacks

A.
capital goods.

B.
a strong agricultural sector.

C.
human capital.

D.
a strong industrial sector.

C. human capital.

C. Human capital.

The correct answer is C. human capital.

To arrive at this answer, we can break down the question and analyze the options given.

The question states that a low literacy rate usually indicates that a country lacks something. To understand what this lack might be, we need to look at the options provided.

Option A, capital goods, refers to physical resources used in the production of goods or services. While the presence of capital goods is important for economic development, it is not directly related to literacy rates.

Option B, a strong agricultural sector, refers to a country's ability to produce and sustain agricultural activities. Although a strong agricultural sector can contribute to a country's overall development, it is not directly tied to literacy rates.

Option C, human capital, refers to the skills, knowledge, and abilities of individuals in a country. Literacy, which involves the ability to read and write, is a key component of human capital. Therefore, a low literacy rate would indicate that a country lacks sufficient human capital.

Option D, a strong industrial sector, refers to a country's ability to produce manufactured goods. While industrial development requires a skilled workforce, a low literacy rate does not necessarily directly indicate a lack of industrial sector strength.

In conclusion, among the given options, a low literacy rate usually suggests that a country lacks human capital (Option C).