Complete the phrase
p. s.: could you explain your answer to me? why didn't you choose another alternative? explain it to me using grammatical rules.
atitude towards his colleagues since
a) changed / was promoted
b) is changing / has been promoted
c) has changed / has been promoted
d) has changed / was promoted

The answer is D.  You have to keep the verb tenses the same as well as active/passive voice.  For 'A', you have active voice/passive voice.  For 'B' and 'C', the verb tenses are not the same (b is present tense/past tense and c is past tense and past perfect tense).  'D' can be the only correct answer in following grammar rules.  

hello, never fear the human spider is here!

answer: c.)   his bad side.

note: if you loved this answer why not mark brainliest!

~

merry christmas

from

the human spider!

people wont do this for 10 points you need at least 50