which of the following is a requirement for an individual to qualify for full retirement benefits under the social security system? group of answer choices the individual must be employed in a job covered by social security for at least 60 quarters, or 15 years, which need not be consecutive. the individual must be employed in a job covered by social security for at least 50 quarters, or 12.5 years, which need not be consecutive. the individual must be employed in a job covered by social security for at least 50 consecutive quarters, or 12.5 years. the individual must be employed in a job covered by social security for at least 40 quarters, or 10 years, which need not be consecutive. the individual must be employed in a job covered by social security for at least 40 consecutive quarters, or 10 years.