Which sedimentary rock is composed entirely of visible, broken shell fragments, cemented with calcite, and has with some open spaces in between

Witch one is it soo it the the question b.a,b,c,d

[fw.02]diana is studying four surface features of florida. she classifies the surface features and places them in different columns of a chart as shown below. surface features column 1 column 2 hot springs sinkholes caverns geysers which of these titles best represents column 1 of diana's chart? formed by freezing groundwater o formed by heating groundwater o formed by evaporation of groundwater o formed by chemical action of groundwater

Can someone me with this plz? ! i'm putting 20 points on it!