The 1933 national industry recovery act
a) created the works progress administration.
b) gave employees the right to bargain collectively.
c) effectively ended the great depression.
d) created jobs for writers, musicians, and artists.

The 1933 National Industry Recovery Act gave employees the right to bargain collectively.

Option - B

Explanation:

The National Industrial Recovery Act of 1933 (NIRA), a consumer and labor law was passed by US Congress in 1993 witha purpose of giving authority to the then president to regulate and monitor the prices and wages fairly to recover and upgrade the economic standard.

Section 7(a) of the bill protected the collective bargaining rights for unions.Collective bargaining is the negotiation between group of employees and employers based on the terms and conditions of employment like hours of work, wages, working environment, grievance redressal, and the responsibilities and rights of trade unions.

zheng he was a chinese explorer who lead seven great voyages on behalf of the chinese emperor. his seven total voyages were diplomatic, military, and trading ventures, and lasted from 1405 – 1433. however, most historians agree their main purpose was to promote the glory of ming dynasty china.

explanation:

an interest group is an organization whose members share common concerns, and try to influence government policies that impact those concerns. elected officials frequently complain about the influence of "special interests" on american politics.