Study passage context: A mother and daughter see red ixora flowers in a garden. The daughter's secret reminds the mother of her own school days, when a friend showed her how a tiny thread in an ixora flower could reveal a drop of sweet nectar. The mother recalls the experience fondly and decides her daughter should also enjoy that small pleasure of nature. Adapted CTET source item 97: Complete the word analogy : cluster : bunch : : puny :?

1. colourful
2. prickly
3. long-stalked
4. delicate