The spelling of the word "MACCATCA" can be explained using the International Phonetic Alphabet (IPA) transcription. This word can be divided into three syllables: MAC - CAT - CA. The first syllable, "MAC," is pronounced /mæk/ with a short "a" sound like in "back." The second syllable, "CAT," is pronounced /kæt/ with a short "a" sound like in "bat." The third syllable, "CA," is pronounced /kɑː/, with a long "a" sound like in "car." Therefore, the correct pronunciation of "MACCATCA" is /mæk.kæt.kɑː/.