__________ is a Schengen country though it is not an EU member.

The modern movement for LGBTQ rights began

A) when gay veterans of World War II organized in the 1950s. B) with the growth of the civil rights movement in the early 1960s. C) in 1969, following a riot that broke out when police raided the Stonewall Inn. D) in 1986, with a campaign against sodomy laws in the state of Texas. E) in 1996, with the campaign for same-sex marriage in the state of Hawaii.

A key challenge to sampling is one of ______.

a. self-selection b. random selection c. instrument construction d. participant selection