Please help me answer these questions

A:

1) Heptathlon: Hepta = seven

2) Octameter: octa = eight (the poem has an 8 meter rhythm)

3) Octopus: only water animal in the list

4) Octave: octa=eight (the musicians went 8 notes higher to match the singer's range)

5) a.septuagenarian: septa = seven (she is in her seventies)

   b. octogenarian: octa = eight (she will be in her eighties)

6) a. octagon: octa = eight and gon = sides (eight sided)

   b. septagon: septa = seven and gon = sides (seven sides)

B:

1) The stop sign is an octagon.

2) Many people at nursing homes are either septuagenarians or octogenarians and need help with daily tasks.

C:

1) octave (8 note scale)

2) heptathlon (7 part event)

3) Octagon (8 sided shape)

4) Septagon (7 sided shape)

the correct answer is the last option

hope this

your pal abigail