Explanation:

Both statements are correct.

• The National Statistics Office (NSO) conducts Periodic Labour Force Survey (PLFS) to produce annual statistics of employment and unemployment characteristics for both rural and urban areas, along with quarterly estimates for urban areas.

• The first annual report based on the data collected in PLFS during July 2017- June 2018 was published in May 2019.

• Objective of PLFS is to estimate the key employment and unemployment indicators (viz. Worker Population Ratio, Labour Force Participation Rate, Unemployment Rate) in the short time interval of three months for the urban areas only in the ‘Current Weekly Status’ (CWS). 

Hence option 4th is correct.