What was one development in education policy during the 20th and 21st centuries
a. the federal government became increasingly involved i education
b. school attendence became mandatory for all children
c. local government became entirely responsible for education
d. public schools were forbidden from changing attendance fees

The answer is letter A, the federal government became increasingly involved in education.

Explanation:

It was during the 20th and the 21st century that education was considered significant in the country's national development. This resulted to the federal government's involvement in increasing the literacy rate of the nation. They ensured that efficient and practical outcomes would prosper. It was followed by the construction of many schools and the development of curicculum.

The government also included "vocational training" in order to improve the skills of the people. Several arrangements were done in order to have an effective school system.

Thus, this explains the answer, letter A.

the berlin blockade was an international crisis that arose from an attempt by the soviet union, in 1948–49, to force the western allied powers (the united states, the united kingdom, and france) to abandon their post-world war ii jurisdictions in west berlin. in march 1948 the allied powers decided to unite their different occupation zones of germany into a single economic unit. in protest, the soviet representative withdrew from the allied control council. coincident with the introduction of a new deutsche mark in west berlin (as throughout west germany), which the soviets regarded as a violation of agreements with the allies, the soviet occupation forces in eastern germany began a blockade of all rail, road, and water communications between berlin and the west. on june 24 the soviets announced that the four-power administration of berlin had ceased and that the allies no longer had any rights there.

the correct answer is b