$1.$ Many full$-$service gas stations are switching to self$-$service. $2.$ Spas and gyms are booming $3.$ Store managers earn $ $200,000$ a year, while salespeople earn $$20$ an hour. Which headline is about what goods and services are produced? Which is about how they are produced $?$ And which is about for whom they are produced? Statement $2$ is about Statement $3$ is E Statement $1$ is about about