Phenol-formaldehyde resin is made in two stages, novolac and then bakelite. Which statement about novolac is correct?

1. AIt is a linear, fusible, low molar mass polymer made with phenol in excess under acid catalysis, and heating it with hexamethylenetetramine gives cross-linked bakelite
2. BIt is the final infusible cross-linked form of the resin
3. CIt is made with excess methanal under basic catalysis and already carries many $-\mathrm{CH}{}_2\mathrm{OH}$ groups
4. DIt is a condensation polymer of phenol with phthalic anhydride