The base word that changes its pronunciation when the word part -tion is added is — A. admire + tion = admiration
B. determine + tion = determination
C. congratulate + tion = congratulation
D. demonstrate + tion = demonstration

the answer is  loss : )                                                                                                 

10 is the correct answer, not 6.

in order to create an in-text citation in apa style you need to put in parentheses the last name of the author(s), the year of publication and the page number.

for example:

(author's last name, year of publication, page number)

or  

(author's last name & author's last name, year of publication, page number)

the in-text citation for this specific book would be:

(hills & johnson, 2015, p. 109)