Consider the table below, and the four function definitions that follow:

The table t below represents four animals from the shelter:

name sex age fixed species pounds

"Toggle"

"female"

12

true

"dog"

48

"Fritz"

"male"

4

false

"dog"

92

"Nori"

"female"

6

true

"dog"

35.3

"Sunflower"

"female"

2

false

"cat"

51.6

 
fun lookup-fixed(animal): animal["fixed"]                   end
fun is-dog(animal):       animal["species"] == "dog"        end
fun is-old(animal):       animal["age"] > 10                end
fun label(animal):        text(animal["name"], 20, "red")   end

Below is a list of expressions, eaching using one table function. Match each expression to the description of the table it will produce.

sort(t, "age", true)

1

A

Produces a table with Toggle, Fritz, and Nori - but not Sunflower.

sort(t, "pounds", false)

2

B

Produces a table of all four animals, sorted youngest-to-oldest

build-column(t, "sticker", label)

3

C

Produces a table, with only Toggle.

filter(t, is-old)

4

D

Produces an identical table with an extra column called "dog", whose values are true, true, true, false

filter(t, lookup-fixed)

5

E

Produces a table containing only Nori and Toggle.

filter(t, is-dog)

6

F

Produces a table with all four animals, sorted from heaviest to lightest.

build-column(t, "dog", is-dog)

7

G

Won’t run: will produce an error. (Why?)

filter(t, label)

8

H

Produces an identical table with an extra column called "sticker", whose values are images

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