(A young couple (夫妻) have a nice lalk in tile garden. )
A: It is awarmday. isn’t it
B: Yes. the weather is prctty good.
A: Yes. How time flies! Spring is around the corner (快到了). Listen The birds are singing every where and the flowers are blooming (开花).
B: l’tn so glad. my filvorite season is coming. What about going out for a Iraveling
A: That is what I was thinking about.
B: Great! Let’s go in and pack our things.
A: Thc oaly thing I woy about is the weather.
B: What you mean
A: If it rains after a while. what shall we do
B: No. it won’t. I’m sure we will have a happy picnic (野餐).
请回答：

What is B’s favorlte season ____________