Select the product(s) formed in the following crossed aldol reaction: 2422a and 2422b.
a) Product 1: 2422a, Product 2: 2422b
b) Product 1: 2422b, Product 2: 2422a
c) Product 1: 2422a, Product 2: Not formed
d) Product 1: Not formed, Product 2: 2422b