It's avail, avail means make use of
There are certainly both pros and cons to using email messages.
Pros:
Email travels instantaneously, no need to wait for reply
Email can reach anyone with internet, regardless of location
Cons:
Users with email can spam one another by sending messages constantly
User must have access to the internet to receive email
Basically, email is useful because anyone with internet can send messages to anyone else who has internet, but both users must, of course, first gain access to the internet.
The personal experience of the poet, so your answer would be c
Answer:
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 and drop the finale.
Group III. The suffix -able always follows the letter i. Thus, if you follow our English custom of changing y to i in these words, you will add -able.
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 orhard g, -able is used. The suffix -able is the only possible ending after hard c or g, in order to keep the proper pronunciation.
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.
