"There are a few men."
It says the correct answer should be 男性がすこしいます and doesn't give 男性 as an option to click. It would seem to me 男がすこしいます should also be acceptable.
Same for me. First they tell me to use 男、then they tell me I'm wrong and to use 男性, but it is not an option
おとこのひとがすこしいます。 Just wanted to clarify the kanji 人 is read as ひと here not じん as the audio says.
In Japanese kanji the word 人 can be read both ひと(kunyomi) and じん (onyomi) where both still means the same (person).