R-dplyrops-fdadata

From a given data set fda which contains data on warning letters sent to doctors by the U.S. Food and Drug Administration, because of problems in the way in which they ran clinical trials testing experimental treatments. Contains the following variables:

name_last name_first name_middle Doctor’s last, first, and middle names.

issued Date letter was sent.

office Office within the FDA that sent the letter.

Now,

(a)Include the packages required and read the data from the data set fda.

(b)Filter the data for letters sent from the start of 2005(1'st January 2005) onwards and print it. 

(c)Count the number of letters issued by year and print it .