Which of the following is an example of a pure public good? aMedical education to become a doctor bA hurricane warning siren cPaper pulp produced with pollution emissions dA ticket to the movie theater

The example of a pure public good from the options provided is b) A hurricane warning siren.

Here's why:

A pure public good has two main characteristics: non-excludability and non-rivalry.

Non-excludability means that once the good is produced, no one can be excluded from using it. Non-rivalry means that one person's use of the good does not reduce its availability to others.

a) Medical education to become a doctor is not a public good because it is excludable (not everyone can access it) and it is rivalrous (one person's use of the education reduces the availability for others).

b) A hurricane warning siren is a public good because it is non-excludable (once it's activated, everyone in the area can hear it) and non-rivalrous (one person hearing the siren doesn't prevent others from hearing it).

c) Paper pulp produced with pollution emissions is not a public good because it is excludable (not everyone can access it) and it is rivalrous (one person's use of the paper pulp reduces the availability for others).

d) A ticket to the movie theater is not a public good because it is excludable (not everyone can access it) and it is rivalrous (one person's use of the ticket reduces the availability for others).