Which is a complete sentence?
a. and told him about it.
b. the early explorers arrived in 1463.
c. when we heard the news.
d. inside the broken elevator on the sixth floor.

What rule applies most closely to this word? predict- group i. if the root is a full word, the ending is usually -able. group ii. when the root is a full word except for a final e, the forms usually are spelled with -able. group iii. the suffix -able always follows i. group iv. when the root has other forms built on the letter a, the -able form is used. group v. when the root ends in hard c or hard g, -able is used. group vi. when the root is not a full word,-ible is used. group vii. when the word has an immediate -tion form, -ible is used. group viii. when the root ends in ns, miss, or soft c or g, ible is used.