Recall that $\mathfrak{p}=\min\{|F|: F$ is a subfamily of $[\omega]^{\omega}$ with the *sfip* which has no infinite pseudo-intersection $\}$. The cardinal $\mathfrak{q}_0$ defined as the smallest cardinality of a subset of $\mathbf{R}$ which is not a $Q$-space. **Q1.** Is it true that $MA(\omega_1)$ iff $\omega_1<\mathfrak{p}$ ? **Q2.** Is there a model of set theory in which $\omega_1=\mathfrak{q}_0$ and a non-$MA(\omega_1)$ ?