Yes you can opt for scheme whose turnover is below 50lac , but there are few restrictions :
1. (i) whose aggregate turnover in the preceding
financial year was fifty lakh rupees or below;
(ii) who is not eligible to pay tax under sub-section
(1) of section 10 of the said Act;
(iii) who is not engaged in making any supply
which is not leviable to tax under the said Act;
(iv) who is not engaged in making any inter-State
outward supply;
(v) who is neither a casual taxable person nor a
non-resident taxable person;
(vi) who is not engaged in making any supply
through an electronic commerce operator who is
required to collect tax at source under section 52 (viii) cannot collect tax from customer & not liable take ITC
Schedule II para 6 clause be is referred to Restaurant Services . Hence choose option (b)
But above 50 lac scheme is not cover under composition scheme , yes it's like that only but not a composition scheme.
Hence before applying for the same plz read the Notification 2/2019, cT (r) carefully