Which word correctly completes the sentence below?

Our training in scuba safety and buddy breathing has been __________ enough that it could qualify for additional certification.

Question

Which word correctly completes the sentence below?

Our training in scuba safety and buddy breathing has been __________ enough that it could qualify for additional certification.

anonymous · Answer

Rigor 

 Rigorous 

 Rigorously 

 Rigorousness

just_one_last_goodbye · Answer

rigorous is the answer want me to explain why? ^_^

anonymous · Answer

b or c

anonymous · Answer

yes please

just_one_last_goodbye · Answer

if not please give me a medal                                                       ^

just_one_last_goodbye · Answer

yesh ^_^ 3 more medals till i get a title aka my goal

clalgee · Answer

@just_one_last_goodbye  Two more :D

just_one_last_goodbye · Answer

O_O thank you so much guys ;-; <3 u ~kisses girls on cheek~ and ~fist bumps guys~

anonymous · Answer

I agree wit justonelastgoodbye I want a medel to;[

just_one_last_goodbye · Answer

i just need one more ;-;

clalgee · Answer

I wish I could give you another one :(

anonymous · Answer

go 2 another question and do it again

just_one_last_goodbye · Answer

YES I GOT IT !!!!

anonymous · Answer

YEAAAA

clalgee · Answer

XD Your welcome LOL

anonymous · Answer

CAN SOMEONE GIVE ME ONE PRETTY PLEASE

just_one_last_goodbye · Answer

thanks guys <3

anonymous · Answer

ILL LOVE YOU 4EVR

clalgee · Answer

Comment or answer another question :D

just_one_last_goodbye · Answer

give bay a medal here http://openstudy.com/study#/updates/541c7513e4b0a68c6c052ab0