Table:
text: United States House of Representatives elections, 1980
Pennsylvania
Pennsylvania
District Incumbent Party First_elected Result_ Candidates
Pennsylvania 6 Gus Yatron Democratic 1968 Re-elected Gus Yatron (D) 67.1% George Hulshart (R) 32.9%
Pennsylvania 9 Bud Shuster Republican 1972 Re-elected Bud Shuster (R) Unopposed
Pennsylvania 11 Ray Musto Democratic 1980 Lost re-election Republican gain James L. Nelligan (R) 51.9% Ray Musto (D) 48.1%
Pennsylvania 12 John Murtha Democratic 1974 Re-elected John Murtha (D) 59.4% Charles A. Getty (R) 40.6%
Pennsylvania 18 Doug Walgren Democratic 1976 Re-elected Doug Walgren (D) 68.5% Steven R. Snyder (R) 31.5%
Pennsylvania 21 Donald A. Bailey Democratic 1978 Re-elected Donald A. Bailey (D) 68.4% Dirk Matson (R) 31.6%

Question: Which candidate is a member of the Republican Party in the United States House of Representatives election, Pennsylvania 1980?

Question: In which district is Ray Musto the incumbent in the United States House of Representatives election, Pennsylvania 1980?

Question: How many parties does incumbent Donald A. Bailey belong to in the 1980s United States House of Representatives election in Pennsylvania?