Sentence1: In the autumn, Susan planted some flower seeds in the backyard. Sentence2: Over the course of the winter, she had forgotten about planting them. Sentence3: Once April came, little flowers appeared all over the backyard. Sentence4: To protect the new garden from her dog, she decided to fence it in. 
 (A) She then dug up all her flowers. (B) Soon, Susan had a beautiful garden.
A