Four candidates have returned nomination papers to run for two seats on the Board of Selectmen at next month’s annual town election. Incumbents Jack Angley and Sarah Hewins will be seeking reelection. The challengers are John Cotter Jr. and Helen Marrone. In other contested races, School Committee incumbent Gina Hanlon-Cavicchi will face a challenge from James A. O’Brien, and an open four-year term on the Planning Board drew two candidates, Chad Cavicchi and Edward James III. No candidates came forward to challenge incumbents in other offices on this year’s ballot, including assessor Karen Bell, Board of Heath member Arthur Borden, North Carver Water District commissioner Kevin Tracey, Planning Board member Bruce Maki, and Redevelopment Authority member Will Sinclair. Voters will go to the polls from 8 a.m. to 6 p.m. on April 28 in the Carver Middle High School gym. - Robert Knox