Which answer is correct?
The correct answer is: 1.ジメジメ
There are many onomatopoeic words in Japanese.
私(わたし)は授業中(じゅぎょうちゅう)にうとうとしていた。：I was sleepy during the class.
納豆(なっとう)はねばねばしている。：Natto is sticky.
The rainy season in Japan lasts from June to July. We call the rainy season ‘Tsuyu’, which literally means ‘plum rain’ because it starts when the plum trees start developing fruits. The summer season starts once the rainy season has ended.
The rain plays an important part for the growth of rice plants and plums and is highly expected by farmers, although most Japanese people dislike this part of the year and call it even “the fifth season”. In Fukuoka, the amount of rainfall can come up to 260mm per month in June or July.
The high humidity in the air during this season encourages the formation of mold and rot not only on food but on fabrics as well.
Since you might want to come to visit Fukuoka in summer, we highly recommend you not to bring shoes that leak to water, because once it starts raining, it doesn’t stop soon and Fukuoka turns into one big whole puddle.
Even umbrellas can help you only avoid the worst. But the best would be to wear easily drying clothes, especially Flip-Flops, or something similar.