What type of spelling does Maria use when she writes "trk" for the word truck?

Maria uses semi-phonetic spelling when she writes "trk" for the word "truck." In semi-phonetic spelling, a writer represents sounds as they perceive them, but may not include all the sounds necessary for standard spelling. In this case, Maria accurately captures the initial consonant blend 'tr' and the final sound 'k,' but she omits the vowel sound in the middle, which is a feature of this type of spelling. This indicates that while she understands the phonetic components of the word, she is not fully applying conventional spelling rules.

The other choices do not fit as well. Standard spelling would require the full representation of the word as "truck." Inventive spelling typically involves more creativity beyond phonetics, where a child might create a spelling that represents their unique interpretation rather than strictly following phonetic sounds. Phonetic spelling would involve spelling the word out as it sounds phonetically, which would likely include a representation of the vowel sound. Therefore, semi-phonetic spelling is the most accurate description of Maria's representation of the word.