ANSWER:aPOINTS:1DIFFICULTY:ModerateNATIONAL STANDARDS:United States - BUSPROG: AnalyticLOCAL STANDARDS:United States - OH - Default City - DISC: Markets, market failure, a - DISC:Markets, market failure, and externalitiesKEYWORDS:Bloom's: Application174. Refer to Exhibit 31-5. If a positive externality exists, then the external benefits associated with the positiveexternality equal the distance between points __________, and the market output is __________.a.A and C; Q2b.B and D; Q1c.C and A; Q1d.B and C; Q1e. b and cANSWER:ePOINTS:1DIFFICULTY:ModerateNATIONAL STANDARDS:United States - BUSPROG: AnalyticLOCAL STANDARDS:United States - OH - Default City - DISC: Markets, market failure, a - DISC:Markets, market failure, and externalitiesKEYWORDS:Bloom's: Application175. Refer to Exhibit 31-5. If a positive externality exists, then curve 1 represents the __________, curve 2 represents the__________, curve 3 represents the __________ and Q1represents the __________.a. marginal private cost curve; demand curve; marginal social benefit curve; marketoutputb. demand curve; marginal social benefit curve; supply curve; market outputc. marginal social benefit curve; demand curve; marginal private cost curve; sociallyoptimal outputd. demand curve; marginal social benefit curve; supply curve; socially optimal outpute. marginal social benefit curve; supply curve; marginal private cost curve; marketoutputANSWER:bPOINTS:1DIFFICULTY:ModerateNATIONAL STANDARDS:United States - BUSPROG: AnalyticLOCAL STANDARDS:United States - OH - Default City - DISC: Markets, market failure, a - DISC:Markets, market failure, and externalitiesKEYWORDS:Bloom's: Application176. Refer to Exhibit 31-5. If a positive externality exists, then the external benefits associated with the positiveexternality equal the distance between points ____________ and the socially optimal output isa.C and A; Q1.