I'm sure its the first one. I haven't really read the poem in a while but i can easily tell by how it's spoken.
1. I am taking some food----- I get hungry.
b. if
2. I will take my jacket off--- it gets hot
a. if
Explanation for 1 and 2:
In case is a phrase that means <em>if something happens or if something is true</em>. Incase is a misspelling of <em>encase</em>, which is a verb that means <em>to enclose something within something else</em>.
In case of is a preposition. It is used before a noun. In these sentences, you have clauses and, therefore, need a conjunction.
3. I don't --- any body to talk to me like that.
b. allow
Explanation:
the verb <em>allow </em>should be used with to-infinitive while the verbs <em>let </em>and<em> make </em>are used with a bare infinitive (the infinitive form of a verb without the word "to")
