152 b. there is a sequence {r,(3)} of rational functions, whose poles are contained in ca and which approximates f() uniformly on compact subsets of a. le no se

152 B. There is a sequence {r,(3)} of rational functions, whose poles are contained in CA and which approximates f() uniformly on compact subsets of A. Le No sequence {P,(3)} of polynomials approximate f() uniformly on compact subsets of A. D. No sequence {r,)} of rational functions whose poles are contained in CA, approximate f:) uniformly on compact subsets of A.